Dr. Death

To some, Eldon Mate was evil personified. To others, the former physician was a saint. But someone has turned the mercy-killing "Dr. Death" into a murder victim. When Mate's brutalized corpse is found harnessed to his own killing machine, psychologist-detective Alex Delaware is asked to aid his old friend, homicide cop Milo Sturgis, in the hunt for the death doctor's executioner.