Trailer: The Cornered Mouse Dreams of Cheese by Isao Yukisada

Although married, Kyoichi has been having affairs. His wife Chikako hires a private detective, Wataru Imagase, to investigate who happens to have come from the same university as Kyoichi. Wataru tells Kyoichi he has had feelings for him for the past seven years and that he won’t tell his wife about his infidelity if Kyoichi starts a sexual relationship with him.