Knife in the Water

A wealthy couple from Warsaw, Andrzej and Krystyna, on their way to the Masurian Lakes, where they are going to spend the weekend, pick up a young hitchhiker. The owner of the yacht invites him to spend a day with them on the lakes. Andrzej tries to use every opportunity and every excuse to show his superiority, experience, maturity. The tension increases, leading to physical confrontation.