Two strangers, Jerzy and Marta, accidentally end up holding tickets for the same sleeping chamber on an overnight train to the Baltic Sea coast. Also on board is Marta's spurned lover, who will not leave her alone. When the police enter the train in search of a murderer on the lam, rumors fly and everything seems to point toward one of the main characters as the culprit.
Stanisław Maria Rochowicz, a bumbling art historian, is falsely accused of stealing a painting. The alleged thief faces five years in prison. Desperate, he decides to hide in disguise as a woman until he can paint a copy of the stolen canvas. Lacking means to live, he takes jobs as a maid for a variety of colorful characters.
Tadeusz Krzakoski, the director of a failing state-owned company, is married with problems. His mistress, the daughter of a Communist party bigwig, says she's pregnant and Tadeusz knows he'll have to marry her to save his reputation and his job. But divorce is never simple and Bareja's screwball comedies are never boring.
