The film follows Kaspar Hauser (Bruno S.), who lived the first seventeen years of his life chained in a tiny cellar with only a toy horse to occupy his time, devoid of all human contact except for a man who wears a black overcoat and top hat who feeds him.
This is the 11th of "Schulmädchen" movies and core issues this time is protection of young people and helping them in dangerous or critical situations.
Lulu models for a young painter who tries to seduce her. When her husband enters the room he dies from a heart attack. Lulu marries the painter, who commits suicide when he finds out that she has been having a long standing affair with Dr Schon and whose son gives her a job. Lulu kills Dr Schon and goes to London to live with his son. Eventually, she becomes a prostitute and dies a victim of Jack the Ripper.
