Quinn Pierce, a therapist trying to outrun her past, receives a request she can't refuse. Elliott Bennett, the distraught husband of renowned socialite and philanthropist Laura Bennett, asks her to help find his wife and her former college roommate. She arrives in her to Harrow Isle, a remote, guarded community where the Bennetts call home. But she is anything but welcomed by the island’s tight-knit community.

Quinn finds an unexpected ally in Luke Hartley, a former soldier who now owns the island's only bar. As she digs deeper into the island's dark history, she discovers that Laura's disappearance might not have been an isolated incident.

Armed with just the voice memos that Laura left behind, Quinn discovers disturbing parallels to the past she’s trying to run away from. The more she uncovers, the more she realizes the heart-stopping truth: Harrow Isle holds a deadly secret, and someone is willing to kill to keep it that way.