My wife, Satomi, was a former colleague of mine. She's beautiful, has a great personality, and is the best woman. We were living happily together... One day, I was ordered by my boss to go on a business trip and had to leave the house. I wondered what my wife was doing when I was away, so I set up a camera. What I saw on camera was a lewd woman having sex with the boss, who was her former sex buddy, and moaning with an expression I'd never seen before. I'm going to expose the whole story and put an end to their lives.