No Exit maintains that mental anguish is worse than physical torment. The play focuses on three individuals trapped in hell together. No torture devices or red-hot flames are needed, as the play concludes that hell is simply other people. Suffering surfaces in a variety of ways: from mutual teasing, prodding, and baiting, to a more philosophical brand of torture (one in which the gaze of other people reduces an individual to the state of an object).
The valet is the only character in No Exit who does not suffer.
The valet suffers more than any of the main characters in No Exit.