Director: William Castle
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
Libby
Sara Lane
Kit
Joan Crawford
Amy Nelson
John Ireland
Steve Marak
Leif Erickson
Dave Mannering
Sharyl Locke
Tess
Patricia Breslin
Ellie Mannering
John Archer
John Austin
John Crawford
Trooper
Joyce Meadows
Judith Marak
Tom Hatten
Gerald Nyes
Douglas Evans
Tom Ward
Barbara Wilkin
Mary Ward
Glen Vernon
John Adams
Sara Anderson
Jill Adams
Janet Hamill
Linda
Dee Carroll
Telephone Operator
Russ Bender
Police Sergeant Harris
John Crowther
Andi Garrett
Libby
Sara Lane
Kit
Joan Crawford
Amy Nelson
John Ireland
Steve Marak
Leif Erickson
Dave Mannering
Sharyl Locke
Tess
Patricia Breslin
Ellie Mannering
John Archer
John Austin
John Crawford
Trooper
Joyce Meadows
Judith Marak
Tom Hatten
Gerald Nyes
Douglas Evans
Tom Ward
Barbara Wilkin
Mary Ward
Glen Vernon
John Adams
Sara Anderson
Jill Adams
Janet Hamill
Linda
Dee Carroll
Telephone Operator
Russ Bender
Police Sergeant Harris
John Crowther
Andi Garrett
Libby
Sara Lane
Kit
Joan Crawford
Amy Nelson
John Ireland
Steve Marak
Leif Erickson
Dave Mannering
Sharyl Locke
Tess
Patricia Breslin
Ellie Mannering
John Archer
John Austin
John Crawford
Trooper
Joyce Meadows
Judith Marak
Tom Hatten
Gerald Nyes
Douglas Evans
Tom Ward
Barbara Wilkin
Mary Ward
Glen Vernon
John Adams
Sara Anderson
Jill Adams
Janet Hamill
Linda
Dee Carroll
Telephone Operator
Russ Bender
Police Sergeant Harris
John Crowther