Two brothers (Jerzy Stuhr and Zbigniew Zamachowski) inherit a valuable stamp collection from their deceased father and soon become consumed and obsessed with their windfall.

Attending to the disbursement of his possessions, the brothers arrive at their father's flat, which, although dirty and austere, is steel-doored, multi-locked and heavily alarmed.

At his brother's suggestion, Jerzy unthinkingly takes a series of Weimar Republic Flugpost Polarfahrt 1931 Zeppelin stamps to give to his son.

Artur and Jerzy gradually become more interested in their father's expansive stamp collection, and each man finds himself spending more and more time at the flat.

As they explore and read about the stamps in the collection, the brothers slowly become paranoid and decide to outfit the apartment with increased security and a guard dog.

Despite these initial accusations, the brothers eventually observe the shop owner and the suspicious neighbor from the beginning of the film convening with the con artist who scammed Jerzy's son out of the Zeppelin stamps.

In the face of their blindness toward the true criminals, the realization that covetousness drove a wedge in their relationship, and the absurdity of their loss, the brothers are reconciled in laughter.