Predicated on the Richard Speck murders. After his behavior ends in rejection from ladies, Warren Stacy begins killing women, always while he is nude, which reduces any physical signs left . Detective Leo Kessler is convinced about Stacy's remorse and, on the understanding of his partner, plants signs to convince him behind bars. When Stacy is released on a technicality, he threatens to move after his family and Kessler, leaving Kessler to shield himself with assistance from law enforcement.