Run Away by Harlan Coben

Simon feels like he's lost his daughter, Paige, forever. She has a boyfriend that abuses her and she is addicted to drugs. Simon has not lost hope though that his daughter might someday get clean. But when Paige's boyfriend, Aaron, is murdered, Simon finds himself a prime suspect since he and Aaron had fought recently. Paige is also missing. Figuring the police are not going to be much help in locating Paige, Simon and his wife, Ingrid, take it upon themselves to find her. But Paige's lifestyle exposes them to a way of life that they are unprepared for... Run Away is another fast-paced thriller by Coben.