Tomoya, a banker, lives with his beautiful wife, Eimi, and his lovely daughter, Tsugumi. One day, a man named Nakata appears in front of Tomoya. He was once a criminal gang member who was arrested after being reported by Tomoya. Later, Nakata takes her older brother Kudo and attacks Eimi, who was doing her housework, and even touches Tsugumi, who has returned home. Then, he contacts Tomoya by videophone and sends Eimi and Tsugumi a video that continues to degrade them into endless sexual acts...
