A subjective adaptation of a well-known autobiographical novel by Zbigniew Unilowski (screenplay by Wojciech Jerzy Has with dialogues by Stanislaw Dygat). The adventures of the tenants of a sublet room in a Warsaw townhouse inhabited mostly by students and novice writers, presented against the social context of the 1930s.
Kazmierz Dziewanowicz's hobby is very strange. He collects people who were born on the 29th of February. One day he sees that in his collection there are two men with the same name, the same birth place, the same date of birth and the same parents. In the middle of the night somebody kills him. The Intelligence Agency begins investigation.
A pair of lovers go off to a small hotel in a little town. The memories of war, however, intrude on their idyll. The girl and boy relive certain wartime experiences in flashback. She was a communist who drove a boy loving her to give himself up.
