Women are mysteriously being murdered by a serial killer. Each of them advertised for help using an ad for a black Stingray Corvette, and the murderer drives around in a Stingray. One of Ray's former clients, a councilwoman, helps to bring him in. Ray pulls in a favor or two to get out of jail, and begins to investigate. He eventually finds out that an old friend from his mysterious past, Edward Benton, is trying to get revenge on him. During a mission in East Germany, Benton was left behind and imprisoned and tortured as a spy. Now he is seeking to even the score. Ray tracks him down and rather then let himself capture, Benton drives his car into a wall.