Zhao Jun and Juanjuan are a loving couple, but their socially inept neighbor Haoming, who has a crush on Juanjuan, uses a telescope to peep at her. One night, a masked Haoming sneaks into the couple's room to fantasize about having sex with Juanjuan with the aid of her garments and is caught by Zhao Jun. Zhao Jun is injured in their confrontation and loses his sexual ability. Now unable to satisfy Juanjuan sexually, he decides to go to the United States for medical treatment. While he is gone, a lot happens..
