Jessica Shepard is an ambitious young police officer. She feels joy and pride about her promotion. But her joy quickly evaporates when she is assigned to investigate a series of murders of men she was once close to. Jessica is plagued by memory gaps, a mysterious amnesia - she cannot remember what happened to her on those nights when these monstrous murders took place. Together with her partner Mike Delmarco, she tries to unravel this knot, but soon realizes that more and more evidence points to her...