Andrzej and Krystyna's marriage is stagnant, with familiar routine breeding contempt. Their Sunday drive to the lake is disrupted when they almost hit a hitchhiker, but Andrzej offers him a ride. As they reach the lake, their animosity subsides, and Andrzej invites the hitchhiker to join their sailing trip. The hitchhiker accepts, despite being inexperienced with sailing. As the trip progresses, their rivalry intensifies, each trying to prove superiority.
Knife in the Water
A man's spontaneous act of kindness to a stranded traveler sets off a series of events that ultimately leads to a harrowing sea voyage, straining the relationship between the two men as they face danger and a violent confrontation.
