Gabriel von Eisenstein is facing five days in prison, allowing his wife, Rosalinda, some illicit time alone with her lover, Alfred. Eisenstein’s maid, Adele, is also looking forward to spending the evening at a fancy dress ball given by the eccentric Prince Orlovsky. When the Prison Governor arrives to take Eistenstein to prison, he is instead introduced to Alfred (who is ‘entertaining’ Rosalinda) and arrests the lover believing him to be Rosalinda’s husband. Meanwhile, at the ball, the plot thickens…