 Owen Marks, parked at Lovers  Loop with girlfriend Liz Taggart, surprises a peeping Tom, who knocks him out and kidnaps Liz. The police leap into action when they learn the victim is a cop s daughter. Kidnapper Harold Loftus, the unhinged product of a smothering mother, makes ineffectual advances toward Liz, who staves him off as the police close in, hindered as much as helped by her overprotective father Capt. Dan Taggart.