An elderly man returns to Poland to find his long-lost son, missing since World War II. In his quest the man is forced to contemplate the elusive and coded nature of truth itself.

Count Olgierd Łabiński lives in Paris with his beloved wife, but their quiet life is disturbed by the arrival of Octavius de Saville, a former admirer of the Countess from her days in Florence. Obsessed with possessing her, Octavius seeks out Dr. Cherbonneau, a sinister figure dabbling in Eastern teachings of reincarnation. Through the doctor’s occult science, Octavius attempts a dangerous “exchange of souls,” scheming to inhabit the Count’s body and win the woman he desires.

A man jumps off a moving train and goes to a small town to face its inhabitants, who seem familiar, but odd.

Police captain Wójcik conducts an investigation into the murder of a cashier from a state-owned enterprise. Despite seemingly numerous leads, the investigation gets stuck in a dead end – the victim had no enemies and nothing was stolen. Despite closing the case Wójcik feels that the key to solving the mystery is the murdered cashier and his past. Exploring this plot, he discovers a full-fledged spy affair, however, trying to catch the real murderer, he’ll have to risk his life, health and career.