Horror House (1970)

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.

Director: Michael Armstrong

Cast: Frankie Avalon, Jill Haworth, Dennis Price, Mark Wynter, George Sewell, Gina Warwick, Richard O'Sullivan, Carol Dilworth, Julian Barnes, Veronica Doran, Robin Stewart, Jan Holden, Clifford Earl, Robert Raglan, Mel Churcher, Bill Hibbert, Freddie Lees, Vicki Michelle