Once a successful surgeon, Frederick Welin now lives in self-imposed exile. Nearly twelve years have passed since he was disgraced for attempting to cover up a tragic mishap on the operating table. One morning, he sees a hunched figure struggling towards him across the ice. The figure approaching is Harriet, the woman he abandoned 40 years earlier. In the late stages of a terminal illness, she wants to visit a small lake in northern Sweden. He upholds his pledge and drives her to this beautiful pool hidden deep in the forest. On the journey through the desolate snow-covered landscape, Welin reflects on his childhood and the woman he left behind. However, Harriet has left the biggest surprise until last.