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.

In Liverpool, a woman inexplicably leaps to her death. The following morning, two bodies are found on nearby Crosby Beach: a woman tied to a statue, and a man buried up to his neck and left to drown. When a nine-month-old murder case is reopened, DI Sheridan Holler is shocked to uncover family connections between the victim, Daniel Parks, and the three unexplained deaths. With Daniel’s body still missing and the number-one suspect cleared of the crime, Holler’s cold case suddenly becomes a major murder investigation.

Rainey’s grandmother makes a startling request: Take me home. To Ireland, the country she fled post-World War II. Though they’re inseparably close, Rainey knows few of her grandmother’s secrets. Until they arrive at Aisling—the majestic estate on the southern coast of Ireland where her grandmother was raised—and Rainey discovers a collection of seventy-year-old letters in a trunk.

It’s 1918 in German-occupied Bruges, Belgium. With luck, Evelien will make it to the end of the war and be given what she was promised: a prized painting in exchange for safeguarding her employer’s possessions. Until then, Evelien knows to keep her head down and stay out of trouble. But life never goes to plan, especially in war. A member of the Resistance approaches Evelien: steal a list of names hidden in her employer’s home.

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.