The director's mother is 90 years old—and is beginning to forget herself. Not only herself, but everything else as well. She has dementia. Only her faith and her tireless knitting of exclusively blue socks keep her alive. The director, whose relationship with his mother has been very tense throughout his life, approaches the dissolution of his mother's ego in this experimental and essayistic film with the support of Didier Eribon, Simone de Beauvoir, Norbert Elias, Jean Améry, and others. In addition to this very personal story, he also tells a universal story about the process of aging, about repression, but also about rebellion in dealing with and interacting with aging people.