Landlord M who owns many share houses in Tokyo. He installs cameras in his properties to monitor the private lives of his tenants. He also infiltrates his relatives as new tenants and collects the fornication that unfolds in the communal life. Some enjoy masturbating in the bathroom, while others spend sweet moments like lovers. 'Private' does not exist in this share house where love affairs between same-sex and multiple residents occur frequently. All of the disturbed sex activities that were secrets only for the tenants are exposed, and it becomes fertilizer for the landlord's pocket.
