The younger brother feels an intense inferiority complex towards his older brother who is good at his job and his beautiful sister-in-law, Aoi. His twisted complex leads him to take the outrageous action of giving his sister-in-law sleeping pills and filming her in a horrible state. The sister-in-law is blackmailed by his younger brother and is unable to resist, being treated as a sexual outlet... The sister-in-law shows an expression of anguish at the humiliating acts, but her lustful body reacts sensitively...