"The Cupboard" shows the manner in which a newly wedded wife gets even with her husband, who has a penchant for pretty girls. She finds a note in which a young woman makes an engagement with the husband and follows him. He succeeds in dodging her and in entering a cupboard, where his troubles begin. He is carted about on a moving van, on a railroad train and is unable to make his escape until he has had a nerve-racking experience. There is much comedy from real life shown in the film.