Anatol Kowalski is an old man who works in a bank and loves his old-fashioned hat. One day the hat gets lost and Anatol decides to buy a new one.

Mister Anatol investigates a gang of thieves looking after a young woman who has just won a lottery.

PZU Inspector Anatol Kowalski is sent to the city of Paryżew on a special mission to catch a gang of bathing suit robbers.