Hide and Seek by Chris Carter

Sam escapes her abusive husband and enters witness protection under a new identity, but his chilling promise to find her turns her fresh start into a deadly game of cat and mouse.
A tense psychological thriller featuring stalker ex-husband, revenge, identity change, witness protection, cat-and-mouse suspense, hidden secrets, and relentless danger.

A propulsive, twist-filled standalone thriller from one of the world's most compulsive storytellers.