The Birds.;

 

The Birds tells the story of Mattis, who has mental disabilities and lives in a small house near a lake with his sister Hege who ekes out a modest living knitting sweaters. From time to time Mattie encourages her brother to find work to ease their financial burdens, but her attempts come to nothing. When finally he sets himself up as a ferryman, the only passenger he manages to bring across the lake is a lumberjack, Jørgen. When Jørgen and Hege become lovers, Mattis finds he cannot adjust to this new situation.