Teenagers in an old mansion are being murdered one by one. The survivors must discover who among them is the killer before they're all finished off.

Cast:Frankie Avalon, Jill Haworth, Dennis Price, Mark Wynter, George Sewell, Gina Warwick,

Genre:Horror, Thriller,

country:United Kingdom,

Production:Tigon British Film Productions, American International Pictures, Tigon,