Psychologist and criminologist Dr. Gretchen White is a specialist in antisocial personality disorders and violent crimes. She’s helped solve enough prominent cases for detective Patrick Shaughnessy that her own history is often overlooked: Gretchen is an admitted sociopath once suspected of killing her aunt. Shaughnessy still thinks Gretchen got away with murder. It’s not going to happen again. 

Detective Mia Hart never planned to return home. One terrifying summer night, Mia lost two of her closest friends to suicide. Scarred and broken, she fled St. Lucy’s, a small island off the coast of Maine. Now fifteen years later, when the body of a journalist is fished out of the bay near St. Lucy’s cliffs, Mia is forced to help with the case - and face all she’s been running from. As she approaches the island, the wintery winds of Black Rock Bay usher Mia home again.

It seems like an open-and-shut case for FBI special agent Lucy Thorne when Eliza Cook walks into the field office. The teenage girl confesses to murdering a young boy. Disturbingly composed, she reveals chilling details only the killer could know. Beyond that Eliza doesn't say another word, leaving a vital question met with dead silence: Why did she do it?

The double murder of a married couple in a small Washington town draws FBI forensic linguist Raisa Susanto into an investigation that mirrors a decades-old crime. Twenty-five years ago—to the day—Alex Parker murdered his parents, then took his own life, leaving behind a note admitting everything. Raisa, paired with forensic psychologist Callum Kilkenny, uses her skills to read between the lines. Especially now that paranoid postings on a conspiracy thread suggest that Alex was a victim himself.

It’s the worst possible time for Detective Kerri Devlin to be involved in an all-consuming double-homicide case. She’s locked in a bitter struggle with her ex-husband and teenage daughter, and her reckless new partner is anything but trustworthy. Still, she has a job to do: There’s a killer at large, and a pregnant woman has gone missing. Once Devlin and her partner get to work, they quickly unearth secrets involving Birmingham’s most esteemed citizens. Each new layer of the investigation brings Devlin closer to the killer and the missing woman.