The Toy Box

The name of this movie is The Toy Box released in 1971-10-27 and it's main theme is When Ralph persuades his girlfriend, Donna, to participate in a bizarre party, she discovers the guests are to perform erotic plays in the presence of a corpse - Ralph's millionaire uncle. The players are promised gifts from the toy box. Ralph and Donna await their turn, when the mansion's doors lock at midnight; and it's not long before they discover the players are being murdered by...the dead uncle?.