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.

Janie Klassyn was only 14 years old when she made the blood pact with her friends. She could never imagine she was setting in motion the horrifying crime that would tear her peaceful prairie town apart. Twenty years later in California, school counselor Emma Grant struggles to keep her past buried. But when she finds a note on her car threatening to reveal her secret, it becomes harder to keep up the deception. Even her teenage stepdaughter suspects that Emma is hiding something.

DI Alec McKay is a man haunted by the loss of his daughter. As he obsesses over a missing person case that is going nowhere, McKay's investigation is interrupted when bodies start appearing on the Scottish Black Isle. Soon McKay and his team start to identify a disturbing pattern behind the killings.

Lisa Taylor had friends, family, and a job she loved back in Cleveland. But when her husband, Jeff, lands the promotion of a lifetime, she gives it all up to stand by him. Their whirlwind move to Miami feels like an adventure, and their idyllic new neighborhood is the perfect place to start a family. But their dreams are shattered when a stranger breaks into their house, holding a knife to Lisa’s throat before Jeff can chase him off.

Northern Ireland, spring 1981. Hunger strikes, riots, power cuts, a homophobic serial killer with a penchant for opera, and a young woman’s suicide that may yet turn out to be murder: on the surface, the events are unconnected, but then things—and people—aren’t always what they seem. Detective Sergeant Duffy is the man tasked with trying to get to the bottom of it all. It’s no easy job—especially when it turns out that one of the victims was involved in the IRA but was last seen discussing business with someone from the loyalist Ulster Volunteer Force.