In a small town in Maine, nothing much happens. Even the Chief of Police, Ben Truman, is thinking about leaving. That is, until he discovers a body in a cabin up by the lake. The dead man turns out to be a Boston prosecutor who had been investigating a series of gang-related murders. When Truman heads to the city to follow the few leads he has on the case, he is not welcomed by the local police - after all, big city crime is not something he has had any experience with. But Truman refuses to let go of the case. With the help of a retired cop, he becomes embroiled in an investigation which reaches back to a killing 20 years ago...