Teenagers gathered in an old mansion are being murdered one by one. The survivors must discover who among them is the killer before he finishes off everybody.
Genres:
Frankie Avalon as Chris
Jill Haworth as Sheila
Dennis Price as Inspector Bill Bradley
Mark Wynter as Gary Scott
George Sewell as Bob Kellett
Gina Warwick as Sylvia Fuller
Richard O'Sullivan as Peter
Carol Dilworth as Dorothy Pulman
Julian Barnes as Richard
Veronica Doran as Madge
Robin Stewart as Henry
Jan Holden as Peggy
Clifford Earl as Sgt Pelley
Robert Raglan as John Bradley
Vicki Michelle as Sally (uncredited)
Nicholas Young as Party Guest (uncredited)
Bill Hibbert as Man in Pub (uncredited)
Made by edimario