Mr. M is a landlord who owns numerous share houses in Tokyo. He installs hidden cameras in his properties to monitor the private lives of the residents. Furthermore, he has his own associates infiltrate as new tenants to gather the lewd acts unfolding within their communal living. Some indulge in masturbation in the toilet, while others spend sweet moments like lovers. In this share house, where affairs between the same sex or multiple residents occur frequently, "privacy" does not exist. All the messy sex lives that were secrets known only to the residents are exposed, becoming a source of profit for the landlord...