The San Francisco area is beset by a series of seemingly random murders without motive or pattern. The police are taunted by phone calls and letters. Could the maniac be the violent truck driver, or the seemingly mild-mannered mailman, or even a cop?

• DirectorTom Hanson
• Release7 April 1971
• Genre
  Crime / Horror
• Duration1h 27m
• Budget?
• Revenue?
• Rate
  

  4.9
  28 reviews
• Productions

  Adventure Productions (II)