When Cassius Black moves to San Francisco for a fresh start, the angel's hopes of staying below the radar of the supernatural organizations that oversee the otherworldly and magic users in the city are dashed when he stumbles across a dead body in the sewers. Morgan King and his team of Argonaut agents have been on the hunt all summer for the culprits behind a series of gruesome killings that have rocked the city. When Fate puts Cassius in Morgan's path, he realizes the angel everyone likes to call The Devil may very well be the only person who can help them track down the murderers.

Buying a house was supposed to be a good investment. Too bad I bit off more than I can chew. Between my job at the bank and my utter lack of home improvement skills, I’m in way over my head. Then a friend suggests I hire a handyman. Enter Tyler. Tyler is down on his luck after a recent divorce, and we strike a deal that he fixes my house while I give him room and board as part of his pay. He’s the perfect roommate, amazing at his job, and he quickly becomes one of my closest friends. But there’s something there, something I’ve never felt for another man before.

Vaughn O'Keefe has been part owner of the Hog's Den for years. Privy to plenty of Disciples of the Road business, he's never been more ruffled as when a new recruit named "Smoke" walks through the door. Something about the man gets his blood pumping, but he knows to keep his preferences under wraps around the club. "Smoke" Callahan has done a couple of rehab stints and is finally clean, thanks to help from the Disciples. He's on the right path and isn't about to get sidetracked, no matter how much the guy who manages the bar gets beneath his skin.

After Emery Hazard loses his job as a detective in Saint Louis, he heads back to his hometown - and to the local police force there. Home, though, brings no happy memories. Hazard's new partner, John-Henry Somerset, had been one of the worst tormentors, and Hazard still wonders what Somerset's role was in the death of Jeff Langham, Hazard's first boyfriend. When a severely burned body is discovered, Hazard finds himself drawn deeper into the case than he expects. Determining the identity of the dead man proves impossible, and solving the murder grows more and more unlikely.

SSA Rain Christiansen used to be the agency's golden boy. It just takes one moment of weakness, one tiny paranormal sighting, and all of a sudden, he's the agency's embarrassment. His boss gives him one last chance to redeem himself - go down to Brickell Bay, play nice with the local police, and leave the ghost sightings behind. Rain is determined to do exactly that, even if it kills him. Cold-case Detective Daniel McKenna's latest investigation is going nowhere fast. Daniel is glad to finally have the FBI help his department requested, even if it does come in the form of his ex.