Someone is killing off contestants of a skimpy dance off.

10 years ago the perverse Dr. Russell couldn't resist the beauty of a young patient in his mental clinic and raped her one night. When she plunged herself from the roof shortly after, he described it as consequence of her heavy depressions. Now the same urge overcomes him with his new patient Sandy. He doesn't know that she's the daughter of his previous victim and that she's come for revenge.