A father lives with his son and his wife. Intrigued by his wife's young, voluptuous body, he secretly films her with multiple video cameras. The cameras in the couple's bedroom capture his wife masturbating, refusing her advances, saying that her son has to leave on a business trip the next day and has to get up early. One day, the father-in-law forces himself on his wife, who is masturbating in the middle of the day. At first, she resists, but her father-in-law's caresses turn her on and she opens her legs. The next morning, she is caught on camera...