A young museum worker sets out to find a treasure hidden in a small town.
A man has been found dead after having been hurled from a train. As security agents, police and a medical examiner piece together his identity, three accounts emerge: one set during World War II, one in the immediate aftermath of the war, and one in contemporary Poland.
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.
