Librarian Carter Matheson is determined to enjoy himself on a Scottish bus tour for fans of mystery author Dame Vanessa Rayburn. Sure, his ex, Trevor, will also be on the trip with his new boyfriend, leaving Carter to share a room with a stranger, but he can’t pass up a chance to meet his favorite author. Carter’s roommate turns out to be John Knight, a figure as mysterious as any character from Vanessa’s books. His strange affect and nighttime wanderings make Carter suspicious. When a fellow traveler’s death sparks rumors of foul play, Carter is left wondering if there’s anyone on the tour he can trust.

Everett Larkin works for the Cold Case Squad: an elite - if understaffed and overworked - group of detectives who solve the forgotten deaths of New York City. Larkin is different from others, but his deduction skills are unmatched and his memory for minute details is unparalleled. So when a spring thunderstorm uproots a tree in Madison Square Park, unearthing a crate with human remains inside, the best Cold Case detective is assigned the job.

Special Agent Jason West is seconded from the FBI Art Crime Team to temporarily partner with disgraced and legendary "manhunter" Sam Kennedy when it appears that Kennedy's most famous case, the capture and conviction of a serial killer known as the Huntsman, may actually have been a disastrous failure. The Huntsman is still out there...and the killing has begun again.

Medium and clairvoyant Simon Kincaide owns a Myrtle Beach boardwalk shop where he runs ghost tours, holds seances, and offers private psychic readings, making a fresh start after his abilities cost him his lover and his job as a folklore professor. Jaded cop Vic D'Amato saw something supernatural he couldn't explain during a shootout several years ago in Pittsburgh and relocated to Myrtle Beach to leave the past behind, still skeptical about the paranormal. But when the search for a serial killer hits a dead end, Vic battles his skepticism to ask Simon for help. 

Liam Baker can see things. Dead people like to visit him and tell them how they were wronged. Some might call it a gift, others a curse. But either way, this ability makes him useful to Los Angeles homicide detective Kimball Thompson. Some madman is slitting the throats of young male prostitutes and then dumping their bodies in the desert with vague clues of pink feathers and the number five. Usually, Liam can talk to the spirits of the dead. But someone is blocking him. Someone is taunting him.

The decades-old disappearance of 21-year-old teaching student Deirdre Duncan is the holy grail for true crime buffs—and Skylar Brennan, the host of the Ugly Town podcast, is no exception. In fact, on the mean streets of the internet, he’s considered an expert on the case. But in law enforcement circles, he’s viewed as just another crackpot internet sleuth.

Victor Bayne, the psychic half a PsyCop team, is a gay medium who's more concerned with flying under the radar than in making waves. He hooks up with handsome Jacob Marks, a non-psychic (or "Stiff") from an adjacent precinct at his ex-partner's retirement party, and it seems like his dubious luck has taken a turn for the better. But then a serial killer surfaces who can change his appearance to match any witness' idea of the world's hottest guy.

As a wildlife photographer, Journey "JJ" Sutton never stays in one place too long. The world is his classroom, and he’s living his dream. His only regret is that he had to sacrifice the love of his life to do it. But as the saying goes, you can never go home again. That’s until there’s a family emergency, and he has to…well, go home again. His easy breezy lifestyle gets complicated fast. It certainly doesn’t help that his ex-fiancé has bought the house next door. 

Someone's out to get Los Angeles bookseller Adrien English. His best friend has been viciously murdered, now he's getting weird phone calls and sinister gifts from a mysterious "admirer." The cops think he's trying to divert suspicion from himself - with the exception of sexy and homophobic homicide detective Jake Riordan. Is Riordan really such a great detective - or does he have a few secrets of his own? Is his offer to help Adrien on the level or is he out to nail his favorite suspect - to the wall?

When you can talk to ghosts, things are bound to get spirited. The ghosts have been there since before I can remember. When I was a kid, they doted on me, but as I got older, they got more demanding. I’ve spent my whole life seeing and talking to dead people and trying to pretend I’m not, because the living just don’t understand. Nobody wants to be around the freak who claims to see ghosts. Until I go to Mannix Estate.