"Teenage friends Kit and Libby make prank phone calls for fun but then find themselves involved in a brutal double murder committed by one of their targets."
Andi Garrett
as Libby
Sara Lane
as Kit
Joan Crawford
as Amy Nelson
John Ireland
as Steve Marak
Leif Erickson
as Dave Mannering
Sharyl Locke
as Tess
Patricia Breslin
as Ellie Mannering
John Archer
as John Austin
John Crawford
as Trooper
Joyce Meadows
as Judith Marak
Tom Hatten
as Gerald Nyes
Douglas Evans
as Tom Ward
Barbara Wilkin
as Mary Ward
Glen Vernon
as John Adams
Sara Anderson
as Jill Adams
Janet Hamill
as Linda
Dee Carroll
as Telephone Operator
Russ Bender
as Police Sergeant Harris
John Crowther
as
William P. McGivern
Screenplay
Ursula Curtiss
Novel
William Castle
Director
Van Alexander
Original Music Composer
Edwin H. Bryant
Editor
Walter M. Simonds
Art Direction
Producer
John McCarthy Jr.
Set Decoration
Dona Holloway
Associate Producer
Joseph F. Biroc
Director of Photography
George Milo
Larry Germain
Hairstylist
Alexander Golitzen
Bud Westmore
Makeup Artist
John Morrison
Unit Production Manager
Joseph Gershenson
Music Supervisor
Ethmer Roten
Musician
Frank Weatherwax
Animal Wrangler
Waldon O. Watson
Sound
Corna Day
Stunt Double
Terry Morse Jr.
Assistant Director
David H. Moriarty