溺水者根据布克奖得主Pat Barker的小说《Border Crossing》(越界)改编，Bette Gordon的这部心理恐怖片讲述了一位犯罪心理学家因为愧疚在多年之后对一桩旧案展开重新调查的故事。男主角(由Josh Charles所饰)因为提供的证词，而使一名年轻男孩被冠上谋杀罪并送进监狱。满怀愧疚的他，在多年后再次与男孩不期而遇。于是无法忍受内心折磨的他，展开了一系列对于旧案极具破坏性的追查...　　Based on Border Crossing, Booker Prize-winner Pat Barker’s controversial novel, Bette Gordon’s (Variety) psychological thriller is the story of a guilt-wracked forensic psychologist (Josh Charles) whose testimony once sent a young boy to prison for murder. When the boy later reappears in his life, he’s drawn into a destructive, soul-searching reinvestigation of the case.