Arthur Pendragon, the youngest Detective Inspector in Camelot, whose job is rumoured to be cursed, stumbles over a series of crimes no one can explain. Merlin Emrys, a constantly broke student working at a shady nightclub to pay the bills, comes in as a sketch artist - one with an unusual gift. The shadow of magic, supposedly eradicated centuries ago, makes things so much more dangerous for everyone. It's hardly a good time to fall in love.