Hidden Memory (2016)

Detective Phillip Harris has been investigating an elusive serial killer for ten years with very little progress. Finally, John Erebos, a witness to one of the murders, has emerged. The shock of the killing has left him with repressed memories. Harris must team up with psychologist Dr. Laquan to help John unlock his memories and identify the mysterious serial killer. However, as he gets closer to the truth, Harris ends up unleashing something beyond his control.