Ewa is a beautiful, happily married woman. One day she meets a young woman claiming to be in affair with her husband. Ewa, shocked, doesn't know whom to believe any more.
A small-time racketeer Stefek evades mob bosses by passing himself off as a mentally unstable cleptomaniac and laying low in an asylum. The racketeer and his closest devotee escape from the asylum and find work at the opera. Stefek becomes stage-doorman and soon discovers that the opera doubles as a brothel.
