A young and beautiful mother-in-law cannot control her strong sexual desires and repeatedly commits unfaithfulness. When the son witnesses such a scene and obtains the evidence, he questions his mother-in-law, and the mother-in-law, who wants it to be kept a secret, promises to do whatever the son says. The son, who has been interested in the obscene body of his beautiful mother-in-law, teases her to the hilt.