A highly controversial and violent "rape-and-revenge" action thriller. The story follows Madeline, a young woman who is rendered mute following a childhood assault and is later forced into heroin addiction and prostitution. She secretly trains in martial arts, defensive driving, and firearms to seek brutal vengeance against those who wronged her.

The film was famously banned in its native Sweden. It is widely cited as a major inspiration for Quentin Tarantino's Kill Bill movies.