The film Taking Your Wife... to Run Away from Prestige studio features the male lead as the main cameraman, and the female lead is Erika Momotani. There is no one in the room except for the couple who are having sex; although it is acting, it feels very real, somewhat resembling amateur porn clips made by students or couples, but this one is of much higher quality.
The story revolves around a wife who gets angry at her husband and goes outside, where she meets a friend that her husband had previously brought home. After some small talk, the girl agrees to get in the car with the young man, and they hit it off well. The couple goes to a restaurant, a park, and their final destination is a well-known hotel in the city, far from home, where no one would discover them - especially the husband.