Peter and Linda, a young couple from the UK, decide to spend a week in Eastern Europe. They go to Poland. They use a small camera to record their journey. Karol, Peter’s stepbrother, picks them up from the airport. The three of them set off to Masuria where they rent a small sailing boat and sail out on a lake. At first, they have a splendid time. They sail, make love and explore the beauty of pristine lakes. One day, they discover an abandoned training ground near Giżycko. Their perfect holiday does not last long. Odd things start happening to them…