When FBI special agent Luke Kendrick discovers chilling evidence of dozens of victims at a crime scene in London, he recognizes the calling card of the notorious H. H. Holmes Society. Named for the eighteenth-century monster regarded as America’s first serial killer, the society is comprised of a twisted web of killers, working to carry out heinous murders in Holmes’s memory. And now the group’s been linked to a Scottish castle turned B and B—where guests check in but never check out.

Scotland has a dead body problem. Another one. And in the wake of a similar spate of tribute killings, Special Agents Luke Kendrick and Carly MacDonald know they have their work cut out for them. Working alongside a new team of agents, the partners have more questions than answers when the crime scenes yield little evidence. In the style of infamous killers Burke and Hare, it appears victims are being moved to a secondary location, where they’re dissected and sold for spare parts.

A legendary rock band’s reunion is just a ruse for FBI agent Chase McCoy’s investigation. Seven years ago, Skyhawk’s lead singer died under suspicious circumstances. Chase knows Sky Ferguson is fronting the band in her father’s honor for the same reason Chase has agreed to be the drummer. They want answers. But having to pose as a couple makes them question just how far they’ll go for the truth.

Deep in the Florida Everglades, the body of a woman is discovered in pieces, presumably ravaged by an alligator. Upon closer inspection, it’s determined no animal could make such perfectly precise cuts. Only a blade could do that. Wielded by a human. Soon, dozens of oil drums emerge amid the river of grass. Each one packed to the brim with body parts.

Seven months ago, Pallas Llewellyn, Talia March, and Amelia Rivers were strangers, until their fateful stay at the Lucent Springs Hotel. An earthquake and a fire partially destroyed the hotel, but the women have no memory of their time there. Now close friends, the three women co-host a podcast called the Lost Night Files, where they investigate cold cases and hope to connect with others who may have had a similar experience to theirs—an experience that has somehow enhanced the psychic abilities already present in each woman.

Leo has two priorities: putting down new roots and making up for his mistakes. He doesn't have time for a blind date with his new neighbor. Until he finds out she's the woman he let slip away… but never forgot. Cassie has finally paid her debts and is living the life she's always wanted. Her new neighbor sounds like he could be Mr. Right. Only, he turns out to be the man who promised her the world, then disappeared without a trace. In another time and another place, he was a playboy who made her believe in miracles. Now, he's a danger to everything she's worked hard for.

Four bodies have been discovered along Europe’s riverbanks, placed with care—and completely drained of blood. Pinpricks on their throats indicate a slender murder weapon, but DNA found in the wounds suggests something far more sinister. Tasked with investigating, the FBI recruits Agents Della Hamilton and Mason Carter to Blackbird, an international offshoot of the Krewe of Hunters. If you want to catch a vampire killer, you need agents who can speak with the dead.

Newly promoted detective Kate Morgan stands up for the victims in the world, never backing down or giving up. From a family of victims, Kate will not tolerate those who take advantage of others. The worst ones prey on the hopes of desperate people to line their own pockets. And, when Kate finds a connection between more than a half-dozen cold cases to a recent case - where a child's life is in jeopardy - she'll make a deal with the devil himself to protect the child.

A secret government unit is formed under the oversight of Adam Harrison, famed paranormal investigator. The case: In a historic mansion in New Orleans’ French Quarter, a senator’s wife falls to her death from a balcony. Most think she jumped, distraught over the loss of her young son. Some say she was pushed. And yet others believe she was beckoned by the ghostly spirits that inhabit the house - once the site of a serial killer’s grisly work.

Her blue eyes wide open, glossed over. A few specks of sand clung to her long, dark lashes. Her beautiful face, immobile, covered in sparkling flecks of sand. Who is the beautiful girl found at dawn, on a deserted stretch of white sand beach? What is her secret? FBI special agent Tess Winnett searches for answers relentlessly. With each step, each new finding, she uncovers unsettling facts leading to a single possible conclusion: Dawn Girl is not the only victim. Her killer has killed before.