A first -- and expert -- entry in enigma and horror as the hi-jacking, and murder, of St. rme, backgroundless, moneyed westerner, brings on a wake of unprovoked, unrelated killings and leaves Harry Riddle, young MD, to speculate on the motives of a crazy killer, the hitchhiker with the red eyes and the torn ear, who exerted a fateful fascination over St. Erne and his fiances. Guided largely by premonition and intuition, Riddle averts his own death -- reworks the evidence -- and exposes a double identity, double indemnity fraud. Out of the groove -- grim chiller.