Ace Castle, detective in the Detroit Homicide Unit, works in the paranormal division known as the 77th Precinct. He and his partner deal with the weird, odd, and downright strange cases popping up in the city. Ace has been doing the unusual work since he started at the DPD, and since then, he has learned that the monsters children swear are under their beds just might really be there. Now, when a girl is murdered in the city, it’s up to Ace and his partner to find the killer along with his motive for ending her life. Yet Ace soon discovers the victim was no ordinary human, but an Undine, and he’s pretty sure her killer is also one of those aforementioned monsters. Finding a murderer is hard enough without constant interference from demon lords and fallen angels, so when Dulles, a fallen angel Ace has known for years, is determined to make Ace fall in love with him, his job soon becomes twice as difficult...