From #1 internationally bestselling author John Katzenbach comes this gripping thriller featuring the most unlikely pair of detectives you’ve ever met—and the long-unsolved cold case that nobody wants them to crack.

It was a short walk home from her best friend’s house. A perfect night in a perfect neighborhood—the safest place in the world … Or so she thought.

When thirteen-year-old Tessa Gibson disappeared one night, it shattered forever the illusion of safety that comes with privilege, scarring her community with the unsolved mystery that would forever be known as “Lost Tessa.”

Twenty years later, after suffering their own personal tragedies, Detectives Gabe Dickinson and Marta Rodriguez-Johnson have been reassigned to the cold case squad and relegated to an office known as “The Dungeon,” where they face a towering stack of ice-cold files. No one expects them to succeed—and nobody wants them to.

When they discover suspicious errors in four different cases, the two detectives find themselves on a path they’re not sure they want to follow. But as long-buried secrets are suddenly brought into the light and hidden adversaries begin to threaten their lives, both Dickinson and Rodriguez-Johnson know that they must continue searching for the truth—no matter how powerful the forces that wish to keep it hidden.