The Enigma of Kaspar Hauser (1974) Subtitles

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.

IMDb: tt0071691 · TMDB: 11710