This story is based on a short story of different colors by cartoonist Zhu Xing Daijiro. In the story, there are people who live in the wall, called wall people, monsters and creatures who can't breathe. They silently observed people's lives from the wall. In that existence, TV seems to have some important connections ... The anonymous tip-off letter "The Wall Man in the Wall" was sent to the TV station, so the photojournalist (played by Masao Sakai) launched an investigation and planned to communicate with the wall man.

TV announcer Xiangzi (Mayumi Ono) receives a letter of complaint about Bi Nan. It is said that the wall man is a strange creature hiding in the wall and has been spying on the situation in the house. Xiangzi conducted an interview around this topic and made a special program. After the program was broadcast, Bi Nan's rumors spread all over the country. It is said in the streets and lanes that wall people love watching TV, but they never talk, and they can move between walls. ...

Xiangzi's boyfriend, photographer PeopleSoft (Masao Sakai), suddenly became very interested in the wall man and took many pictures of the wall. PeopleSoft used to take Xiangzi's work seriously, but now it only cares about the wall man, which makes Xiangzi very uneasy. PeopleSoft became more and more fascinated, and even began to plan to let wall people communicate with each other. At the same time, the rumors about the wall man have escalated step by step and intensified. In the crazy wall man craze, strange phenomena of unknown reasons befell people around Xiangzi. ...