The body of a young woman is found in a ditch in the woods of the small California coastal town of San Benito. The two gifted high school students who thought they had executed the ‘perfect’ murder must become engaged in an intellectual contest with a seasoned homicide detective.
The movie tells the story of Jimmy Kilmartin, a convict agreeing to go undercover and gather evidence with the help of an angry detective to ensnare a psychotic mobster in order to win an early release from prison.
When a ‘Single White Female’ places an ad in the press for a similar woman to rent a room (to replace the boyfriend she’s just left), all the applicants seem weird. Then along comes a level headed woman who seems to be just right. The new lodger has a secret past which haunts her.