Unpredictable Nature of the River

Martyna and Wojciech form a seemingly happy relationship. However, it is only a façade hiding a cruel truth. Martyna's friend Alicja is a single mother of 20-year-old Daniel, who is the apple of her eye. Alicja is unable to accept that her son has his own life. One day Daniel meets Adelina. A puzzling story in which we ask ourselves not only who killed and why, but above all who died!?