There are threads in our lives. You pull one; and everything else gets affected. When they were children; Sean Devine; Jimmy Marcus and Dave Boyle were friends. But then a strange car pulled up their street. One boy got in the car; two did not; and something terrible happened - something that ended their friendship and changed all three boys forever. Twenty-five years later; Sean Devine is a homicide detective. Jimmy Marcus is an ex-con who owns a corner store. And Dave Boyle is trying to hold his marriage together and keep his demons at bay -demons that urge him to do horrific things. When Jimmy Marcus' daughter is found murdered; Sean Devine is assigned to the case. His personal life unravelling; he must go back into a world he thought he'd left behind to confront not only the violence of the present but the nightmares of his past. His investigation brings him into conflict with Jimmy Marcus; who finds his old criminal impulses tempt him to solve the crime with brutal justice. And then there is Dave Boyle; who came home the night Jimmy's daughter died covered in someone else's blood...