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Unholy

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"Watch and pray that you may not enter into temptation. The spirit indeed is willing, but the flesh is weak."- Matthew 26:41

"Just give me the night, Father, and you'll be praying to me." A demon's whisper echoes from Killian's lips, threatening eternity. With each sensual word out of the demon's perfect mouth, my devotion unravels. I was sent to expel the demon from Killian's body, not surrender to its darkness. Forbidden desire ignites, challenging sacred vows and unleashing a passion that could damn my soul forever. This desire burns so deep in me, it rivals the flames of Hell. It threatens to destroy everything I hold sacred, and yet, I can't walk away from Killian. My faith wavers and my vows are tested – forever shattered by the sin I’m about to commit with him.

Unholy is a dark, taboo M/M spicy romance not for the faint of heart or the sound of faith. For a complete list of content warnings, check the inside of the book or my website.

205 pages, Paperback

Published April 18, 2025

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About the author

L.M. Archer

9 books40 followers
L.M. Archer was first drawn to writing as a way to express my feelings when oftentimes, she found that she couldn’t say them out loud. That’s why her writing is more on the dark side of the romance spectrum. She tends to write in a way that showcases real scenarios and events. Her books tackle mental health, moral values, religion and many other topics that are raw and real.

Archer is not afraid to make her readers look at the darker side of humanity and question the very foundation of life and existence. The topics in her books can be triggering, but she is a firm believer that you need to shed light on certain situations. Keeping them in the dark only hurts more.

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5 stars
52 (27%)
4 stars
71 (37%)
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44 (23%)
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18 (9%)
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Displaying 1 - 30 of 37 reviews
Profile Image for Stephen.
41 reviews6 followers
May 13, 2025
“But I’ll burn in Hell if I choose you!” I scream, my voice raw with emotions as a steady stream of tears fall down my cheeks. “Then I’ll set fire to my body, so you won’t burn alone.”


Im honestly not sure what I was expecting going into this, but I am blown away.
Profile Image for Dalene.
1,441 reviews28 followers
April 30, 2025
“But I’ll burn in Hell if I choose you!” I scream, my voice raw with emotions as a steady stream of tears fall down my cheeks. “Then I’ll set fire to my body, so you won’t burn alone.”

If you think Priest is bad, you are in for a rude awakening with this book.

This book would make a lot of people mad and I'm here for it. A priest goes to a exorcism and ends up sleeping with the demon? Yeah it's that book. But man it was everything.

I was hooked on this book from page 1. Father aka Levi believed God was there for him and always protecting him. I love how Killian opened his eyes, even if it took him a while to get there. This book was so well done and showed how Levi didn't give up on God easily. Like I said this book would make a lot of people mad.
Profile Image for ✨Shawna of the Shire✨.
362 reviews12 followers
June 14, 2025
Filthy. Depraved. Hawt.
🔥🔥🔥🔥🔥
This was a wild ride but I enjoyed every second of it.
Profile Image for DaLynn B. .
168 reviews
May 28, 2025
Well hot damn to you too! 🥵

Listen guys - this is probably one of the best content warnings I've ever read. They said what they said, K? If you can't handle it then don't read it.

Immediately want to read it again! This has got to be one of the sluttiest books I've EVER read. For the record it's mostly spice. I will say, I like a good bit of "I'll do anything for you to see you're my savior".

There was solid back and forth between Killian and Levi. They had so much chemistry and honestly I can appreciate how "humany" Killian was becoming the more he wanted Levi. It's obsessive, blasphemous, sexy as all hell but actually still really fuckin sweet. How many lovers have you ever had that will go through trials for their soul to prove that you're worth anything and everything? HUH!
Profile Image for Sara Husser.
613 reviews8 followers
June 6, 2026
✝️ Just give me the night, Father, and you'll be praying to me 😈

"What kind of demon are you?"
"Worried because your little magic trick didn't work as you had hoped? Maybe you're having too many impure thoughts."
"Excuse me?"
"Impure. Sinful. Depraved. Wicked. Unholy."
"I am not."
"Then why are you hard?"

"This thing is everything unholy. It's everything tempting. It's everything I was warned about."

"Just give me the night, Father, and you'll be praying to me."

"I want...I want to touch darkness. I want to feel it inside of me. I want...I want to have this secret from God."

"I would rather burn while touching your skin than be left unmarked never knowing the feel of it beneath my fingertips."

"I always knew you were a soulless demon."
"And you're a self-righteous priest. We all have our flaws."
"You're disgusting."
"You're virtuous."
"Heathen."
"Saint."

"I have seduced a man of the cloth."
"Do you regret this action?"
"I know I should, but I don't. I think I've fallen in love with him."

"But I'll burn in Hell if I choose you."
"Then I'll set fire to my body, so you won't burn alone."

"Let me give you Heaven. I don't want anything in return. No strings attached. I don't need your worship or your loyalty. I just want to give you paradise."

"It's all for you, Father. Everything I do. Everything I am. It's all for you."
"Only me?"
"Yes, I only worship you."
"Worship?"
"Yes. You are deserving of my worship. Of my faith. Of my prayer. You the maker of my heaven and earth, of all things visible and invisible."

"Obsessed. I am obsessed with this priest. A deep part of me knows that Father Levi is mine, and I will never let him go. Of course, Levi doesn't know that yet."

"What're you doing?"
"Praying."
"I've never seen this type of praying."
"You're not doing it right then."

Holy spicy hotness, what did I just read? This book was fantastic and so naughty 🫣. I loved every single word in this depraved and debauched book. This is my first book by this author and it definitely won't be my last. This was filled with kinky spice, but the plot was also fantastic. I love how we got a great dark romance and some feels as well. If you're religious, then this book will not be for you 🤣🤣. Crosses, confessionals, and holy spicy verses, oh my 😅. This book had me hooked from the very beginning until the last page. This is also probably one of the best written stories about a demon and a priest falling in love as well.

This story follows Father Levi and Killian. Father Levi is called to perform an exorcism on Killian. He just turned 26 and weird demonic things have been happening. As soon as he enters the room, something feels different. He is attracted to Killian and can't keep his body or thoughts in check. None of the usual holy relics quite work on Killian either. This leads to spicy times 🥵. The cross ✝️ 🫣😏. Father Levi is disgusted with himself then leaves to cleanse himself. Of course Killian follows him. Levi tries to kill Killian but fails. This leads to some spicy bible verses, a sexy debauched baptism, and some truths that Levi can't accept. Killian ends up going on a quest for the other half of his soul to be good enough for Levi. Will Levi be able to accept his feelings for Killian? Will Killian come back to claim his priest? Can these two create their own Heaven in each other?

I loved these two men together so much. The chemistry and tension was so damn sexy 🥵🥵. The spice was top notch and so kinky 🔥🔥🔥🔥. The confessional and church scenes 😏😈. The cross and Bible verse talking while sexy time happened 🥵😈. I also loved seeing the vulnerable moments. Even when Killian didn't have his half of a soul, he still felt something for Levi. Everything he went through to get that half of his soul so he could be better for Levi had me 🥹🥹. I really liked how the author portrayed the struggle for Levi and his faith. Their banter was hilarious at times as well. The pull between these two was everything. I really loved the twist of who Killian really was as well. I was so happy to see them both come to terms and get their HEA!
Profile Image for Cocolici.
265 reviews19 followers
May 11, 2026
What in the morally corrupt chaos did I just read? 😮‍💨

This book was filthy, toxic, dark, twisted, and absolutely unhinged… and I ate up every single second of it. If you’re looking for a soft wholesome romance, turn around immediately because Unholy does not care about your feelings.

The vibes were pure obsession, manipulation, sin, and destruction wrapped up in tension so thick I could practically taste it. The characters were messed up in the best possible way and the chemistry felt dangerous from the start. It’s one of those books where you know everything is wrong… but you physically cannot stop turning the pages.

Was it chaotic? Yes. Was it evil? Also yes. Did I love every filthy second of it? Absolutely.

If dark romance with morally black characters, toxic obsession, and “this should not be hot but somehow it is” energy is your thing… welcome to your next addiction.
Profile Image for Linnea Marie Jarild Larsen.
43 reviews1 follower
May 8, 2025
This is a nice little book for anyone feeling blasphemous. And I usually do.

And my little atheist heart really did enjoy the conclusion that God is just a petty, petulant child.
86 reviews
June 5, 2025
✅✅✅

The ending was sucky… I don’t think I needed all the detail of the trial, but the story is amazing. The integration of the prayers and what it meant for them is peak unholiness.
Profile Image for nicola.
22 reviews1 follower
June 9, 2026
i’m going to hell for this one but it’s worth it if i get to see levi and killian in action
Profile Image for Katie Johnson.
3 reviews
May 1, 2025
This book was a good read. One of the main characters goes through a deep internal emotional struggles. The other character is complex. There’s plenty of spicy moments.
Profile Image for Rylee Smith.
42 reviews2 followers
April 22, 2025
I was a little skeptical the first few pages of this book if I was going to like it. Spoiler I ended up loving it. It tackles some heavy emotions and topics surrounded around religion which can be hard for some people to read. I enjoyed all of the emotions and trials and angst this book had. I felt like both sides were represented well and definitely give’s you some things to think about and ponder.
Profile Image for Roxanna Mascarenas.
313 reviews8 followers
July 25, 2025
This was , I am not sure how to explain how I felt. This was intense and definitely unholy.
This book was a mind questioning bubbling experience
Profile Image for L.M. Archer.
Author 9 books40 followers
Read
April 18, 2025
Note from the author: DO NOT READ THIS BOOK IF YOU'RE RELIGIOUS OR DO NOT LIKE BLASPHEMOUS CONTENT!
Profile Image for Ana Silva.
848 reviews13 followers
June 17, 2025
Absolutely obsessed with this book it’s sexy, smart, and surprisingly emotional in all the best ways.

Levi’s mission is to cast out the demon possessing Killian, but nothing goes according to plan… unless the plan is to fall under a demon’s spell, because wow. The heat between them is off the charts. Think: sinful, forbidden, deliciously dangerous.

But what really got me was how much heart this story had. Killian’s demon side falling in love? Yes, please. The layers of redemption, internal struggle, and learning to let go of prejudice hit so hard. Both MMCs had such powerful moments of self-reflection, and I found myself rooting for them beyond the spicy scenes (which, by the way, sizzle).

Also, the way the Easter themes were woven in? Subtle, meaningful, and perfect for the timing of the release.

Honestly, it was one of those books where I finished and immediately wanted to start over. A fiery, emotional ride from start to finish.
Profile Image for Hailee Flaherty.
282 reviews6 followers
November 13, 2025
⭐️⭐️⭐️⭐️⭐️/5
🌶️🌶️🌶️🌶️.5/5

- MM
- Priest/demon
- Unholy use of holy artifacts
- Dub con
- BDSM
- Pain play/fighting
- Straight smut turned actually romantic

Oh. My. God. (pun intended lol). This was so hot honestly. The start to this book was insane and had me hooked immediately, I had no clue what direction the plot would take or if it would be straight smut, but there was a super creative plot that happened and this book turned really romantic.

“Forgive me, Father, for I have sinned.” Killian drops to his knees, and before I can stop him, my pants are shoved down around my ankles and my cock is deep inside Killian’s throat.

“Sometimes you have to touch white clothes with ink. That’s how words and art are produced. You would never have an inspirational painting unless someone was willing to dirty up the blank canvas,”

Do not read this book if you are religious lol. If you love a smutty priest book though, it’s a MUST read.
Profile Image for Alexandra  S.
44 reviews4 followers
April 7, 2025
When I say this book is all kinds of hot . . .I mean, burning in hell hot!🔥🔥🔥

Levi is tasked with exorcising the demon out of Killian, but nothing appears to work, and Levi seems to be under his spell.

Only the demon side of Killian has fallen in love!
In this tale of love, redemption, battling our own inner prejudices and acceptance, this steamy, kinky, loving story reveals the depths to which we will go for true love!

I loved this book, the writing flowed beautifully, the self reflection from each MMC was insightful, and the way the Easter story was woven in was perfect for its release date on Good Friday!

Fabulous!
Profile Image for The Naughty Booknook.
195 reviews70 followers
March 14, 2025
If you are religious and do not like reading anything with sacrilege/ blasphemy. Turn around, walk away, and do not look back. This is not the book for you.. However, if you are like me with zero triggers and love Taboo procede forward because holy hot hell 🔥 literally, there is a demon ( Killian.) you start routing for pretty early on in the story. And a priest (Levi) who begins questioning everything. Levi and Killian have some hot and dirty scenes that will leave you thinking about taking yourself to confession and maybe saying a few roasarys, and it's completely worth it..
Profile Image for Lisa.
3,636 reviews145 followers
April 21, 2025
Levi is called in to perform an exorcism on Killian. However it turns out that Killian isn't just possessed but is actually half demon. The exorcism fails but the 2 have a sexual interlude for a day or so. 3 months pass and Killian finds Levi in his church and again engage on a sexual interlude.
I enjoy taboo books but for those who are religious I would avoid.
Profile Image for Zuzana Burzikova.
3 reviews1 follower
April 11, 2025
This was my favourite read so far this year. I really enjoyed the story and the spice was just right. Once I started reading, I couldn't put it down. Definitely recommend for MM romance lovers
Profile Image for marx..
4 reviews
May 29, 2026
I cannot even explain how much I loved this book
(I am not sure if this review necessarily has any spoilers so just be cautious)
okay so I could understand why some people would hate it... I mean come on its literally the most rebellious book I've ever read. I've never read something that has been so against religion until now.
I am personally not religious myself to reading this book really shined some light on that.

Reading about how Levi was so obsessed with the thought of a god made me cry BUCKETS.
There were a significant amount of times where I had to just put my phone down and just stare at my walls.

The only complete reason why I gave it a 4 star and not a 5 star was because I wasn't too fond of the smut. There were too many prayers and although I know that was the whole point, I still couldn't rock with it.

If you are a really religious person, do not read this book but overall this book was phenomenal, I still find myself flipping back to my favorite pages.
Profile Image for Ann.
65 reviews4 followers
March 19, 2025
This is an easy, short and enjoyable, spicy mm romance between a priest and a demon with a HEA.

The story has a lot of typical Catholic blasphemous imagery, including several reworded prayers, so if that's not your jam ... :) I found it fascinating and creative.
The spice is nice, mostly consensual and medium graphic.

The story can also be interpreted as a showdown and reconning with the Catholic church's prejudice and discrimination towards LHBTQA, and even the "birth" of an atheist.

The characters could have had more depths and the story been more elaborate, but my preferred romances are usually at least 500 pages :D I totally get that a lot of people prefer shorter stories and I like this one. It "lingers" nicely in my brain.

I received this book for free as an ARC so the few misspellings and some "clumsy" sentences will probably be fixed by the publication date.
I think I will go and see if I can find more of this author, I like the style ...
Profile Image for J.J..
373 reviews5 followers
April 18, 2025
Damn, I'm not even Christian, but all the religious turmoil got to me.

The book was truly interesting, but many aspects were rushed.

Killian became obsessed with Levi in 0.3 seconds, which doesn't really make sense. He insinuated that he knew Levi, but that was never clearly explained.

Levi was clinging to his faith for most of the book, so it felt weird that he suddenly decided to forsake God. I wish there had been hints of it, that we'd seen him starting to have an increasing amount of doubt. I know that he'd been in complete denial, but it didn't seem realistic.

There's a lot of telling instead of showing in the last part, and that was also a shame.
Profile Image for Kayla Cook.
333 reviews7 followers
June 13, 2025
WHEWWWWWWW CHILD SOMEONE GET ME A FAN ASAP BC ITS HOT IN HERE!!

This was absolute filth and I ate every second of it up.
A demon & a priest??
Prayer as dirty talk??
An actual baptism while getting off?
Being tied to a cross??
YES MA'AM

The beginning packed more of a punch for me than the ending, but I loved this. I had the best time reading it.

If you're looking for a HOT, quick, dirty read that's all spice/minimal plot, I HIGHLY recommend.
Profile Image for NitemareMoon.
216 reviews4 followers
July 14, 2025
Lev and Killian. I was intrigued at the idea of reading a story about a priest and a demon after seeing this book recommendation pop up on my social media. While the book did deliver a very unholy experience it could have benefited from better character development and a longer timeline. There were also several typos/editing errors in the book.
882 reviews9 followers
March 13, 2025
God damn!

Okay so.... Priest and a demon... Yea, I'm all about that! This was great! The spice was hot! And kinda fucked up at time 😂 also if you are religious this book might not be for you! I loved the end and redemption for Killian! Love is love! So worth the quick (slightly WTF) read!
Displaying 1 - 30 of 37 reviews