Los Angeles hunky lawyer David Hewson (Lex Barker, a former screen Tarzan) is vacationing at the posh Kanab, Utah, lodge (filmed at Lake Tahoe) owned by the embittered and self-loathing Edmund Parry (Ron Randell), who is confined to a wheelchair because he’s a paraplegic. He taken care of by his devoted but over-protective sister Julia Parry (Marie Windsor). While David is necking with sweet lodge employee Beth Dixon (Anne Bancroft), they discover on the lodge grounds the mutilated body of Marcia Morgan, a lodge guest. No-nonsense Sheriff Jess Holmes (John Dehner) investigates and everyone at the lodge becomes a suspect. The murder weapon lodge kitchen knife is found by one of the employees, Indian Joe, the local drunk. Soon a visiting private detective from back east, Joe Felton (Gene O’Donnell), who checked in after the murder, is found drowned in the pool and that is followed by the slashing death of Los Angeles model, always seen clad in revealing tight-fitting outfits, Harriet Ames (Mamie Van Doren). Now that we have a maniac serial killer on the loose, the sheriff uses police procedural methods to track down the elusive killer but not before there’s one more killing of a beautiful woman.