A man (Vincent Price) and his wife (Carol Ohmart) invite 5 strangers to a party with a difference. They are invited to stay in a supposedly haunted house and will get $10,000 if they survive the night. Vincent Price and Carol Ohmart seem to have more hate than love in their marriage and the tension in the house rises as people get start getting killed. The film revolves around the character and performance of Vincent Price as the cold calculating millionaire with good support from Carol Ohmart as his scheming wife