Damnation Street by Andrew Klavan

They are two sworn enemies with a single obsession: a woman on the run from them both.

Scott Weiss is a private detective. John Foy is a profes­sional killer. The woman is Julie Wyant, a hooker with the face of an angel.

Julie spent one night with Foy—a night of psycho­pathic cruelty that Foy called love. Desperate to get away from him, she vanished without a trace. And Foy wants her back.

There’s only one man who can find her: Weiss, the best locate operative in the business. She’s begged him not to look for her, fearing he’ll bring the killer in his wake. But Weiss can’t stay away.

Now, from a town called Paradise, through a wilder­ness that feels like hell, Weiss searches for Julie—and the killer follows, waiting for his chance.

They are two expert hunters matching move for move—until it ends on Damnation Street.