The film follows Carole's descent into madness as she is haunted by past traumas and the constant harassment of men outside her apartment. As her hallucinations become more vivid and frightening, Carole becomes increasingly violent and begins attacking anyone who comes into her apartment, including a luckless suitor who tries to court her. Repulsion is a psychological horror film that explores themes of sexual repression, trauma, and mental illness. The film is notable for its groundbreaking use of sound and imagery to create a claustrophobic and unnerving atmosphere. It is considered by many to be one of Polanski's best films and a seminal work of psychological horror.