Karin (Harriet Andersson) finds God.
A second-rate author, David (Gunnar Björnstrand), his son and daughter, Minus (Lars Passgård) and Karin (Harriet Andersson), and the daughter’s husband, Martin (Max von Sydow), are staying on an island. Karin is a latent schizophrenic who has just gotten back from hospital, while David has just returned from Switzerland, where he fled to write when Karin fell ill. On the island, Karin’s condition worsens; she wakes in the night and goes up to the attic, where she hears voices talking from behind the frayed wallpaper. They tell her to read her father’s diary, where she learns that her condition is incurable and that her father is disgusted to find himself studying her as a subject for his writing. Meanwhile, Minus tries and fails to connect with his father, and Martin grows ever more desperate at his inability to help Karin.
