During a vicious heat wave, a county maintenance worker stumbles upon two suspicious suitcases abandoned by the side of the road. Sheriff Bree Taggert responds to find two bodies stuffed inside the luggage. The press demands action. The community is on edge. Suddenly, Bree is at the center of a media firestorm. In Oregon, a senator’s daughter goes missing. FBI Special Agent Mercy Kilpatrick agrees to keep the politically sensitive case on the down-low.

When Special Agent Jeanette LaFarge is called in to investigate a vineyard in the Reims region of France, the last thing she expects to find is multiple bodies with every vein bled dry. It’s yet another case tailor-made for Blackbird. Joining her is recent recruit Detective Daniel Murray, eager to use his newfound abilities to track down whoever is terrorizing Paris and its surrounding areas. With each ashen victim grows the realization that those responsible weren’t inspired by vampiric creatures of the night but by Elizabeth Báthory herself.

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.

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.

Detective Evan Bolton is gutted by his latest investigation. His friend and mentor, retired detective Rod McLeod, has been murdered, his body left in the trunk of a junkyard car. When McLeod’s daughter and grandson abruptly vanish, Evan knows it’s not a coincidence. Search and rescue canine specialist Rowan Wolff agrees as she and her dog, Thor, track the missing family.

Everyone in the small town of Denton is searching for Isabelle Coleman, a missing 17-year-old girl. All they've found so far is her phone and another girl they didn't even know was missing. Mute and completely unresponsive to the world around her, it's clear this mysterious girl has been damaged beyond repair. All Detective Josie Quinn can get from her is a name: Ramona. Currently suspended from the force for misconduct, Josie takes matters into her own hands as the name leads her to evidence linking the two girls.

Someone is stalking Audrey Young. And she has no idea why. Complicating matters is her landlord and new neighbor, Josiah Haven. She doesn’t usually go for the big, surly lumberjack type. But there’s something about that broody man. He intimidates her a little, but she kind of likes it. She could totally handle the mess that is her life, except the strange feeling of being watched is just the beginning. Next thing Audrey knows, she’s a target, and she doesn’t know who’s behind it or why. For Josiah Haven, none of that makes her his problem.

Twenty years ago Emily Mills's father was murdered, and she found his body hanging in the backyard. Her younger sister, Madison, claims she was asleep in her room. Her older sister, Tara, claims she was out with friends. The tragedy drove their mother to suicide and Tara to leave town forever. The killer was caught. The case closed. Ever since, Emily and Madison have tried to forget what happened that night - until an eerily similar murder brings it all back.

When Jenna Bernstein, disgraced wunderkind CEO of a controversial biotech company, is accused of murdering her former partner and lover, she turns to Seattle attorney Keera Duggan to defend her. Keera is more than a master chess player who brings her intuitive moves into court—she’s Jenna’s childhood friend. But considering their history, Keera knows that where Jenna goes, trouble follows.

It was Beth Katz’s serial killer father who made her like she is: a successful FBI agent and an unstoppable vigilante dedicated to hunting down murderers who have evaded capture. Beth will push herself to the limits to deliver justice. Even if it means killing those who deserve to die.