This is an unusual but extremely interesting MM paranormal story but I would hesitate to call it a romance & it certainly kept my attention. The well-paced plot is emotional with very intense situations & has dark undertones with some good scene descriptions & world building. The characters are well-developed & have absolutely unique personalities although at times some of them are inclined to be quite devious and/or have deadly intentions while another character has romantic inclinations.
There is: a incubus slave (Kol’tso aka Kolt), a somewhat psychotic fae (Leondro), a nephilim acting as security (Gideon), a human detective (Bryce), a organization, twists & turns, drama, intrigue, suspense, slavery, deceit, betrayal, manipulations, threats, abuse, despair, fear, vulnerability, desperation, forced non-consensual scenes, forced starvation, dubious consent, cruelty, vengeful feelings, mass murder, investigations, political agendas, isolation, surprises, disappearance & strangely enough there is love, contentment, steamy scenes & a well-deserved happy ending.