After the playground and the corridors, the classroom is the other important space of formal education. This cinematic essay by a former teacher uses the aesthetics of films about 19th C closed houses (brothels) to suggest the claustrophobic and intense relationships that develop between teacher and students, students and students, within the set medium of the classroom. The unadorned walls and serial furniture make the setting for very typical exchanges, which both sides – students and teacher – attempt to dynamite on several occasions. However, the roles are never truly displaced, there is no outside of the space.