Three damned souls, Joseph Garcin, Inèz Serrano, and Estelle Rigault, are brought to the same room in Hell and locked inside by a mysterious valet. They had all expected torture devices to punish them for eternity, but instead, find a plain room furnished in the style of the French 'Second Empire'. At first, none of them will admit the reason for their damnation: Garcin says that he was executed for being an outspoken pacifist, while Estelle insists that a mistake has been made; Inèz, however, is the only one to demand that they all stop lying to themselves and confess to their moral crimes. She refuses to believe that they have all ended up in the room by accident and soon realizes that they have been placed together to make each other miserable. She deduces that they are to be one another's torturers.