A remote highway on the outskirts of a quiet town becomes the scene of mysterious murders. At night, the mutilated bodies of people are found, surrounded by a multitude of unclear clues. The police had no suspects until the body of the next victim was discovered by a young detective, Frank Fleming. Frank will have to explain what he was doing on the highway late at night—and why the victim, like two drops of water, looks exactly like his brother, who was killed under unclear circumstances. Frank becomes the main suspect. Will he be able to prove his innocence and uncover the grim secrets of the highway, or will he become the next victim of the mysterious killer?