The sensational celebrity of Circus Europe is so-called Tarzan (
Rudolf Hrusínský) - half-monkey and half-human. One of the circus visitors, anthropologist Forejt
Vlastimil Hasek, is intensely interested in the weird creature. He meets a young attractive woman named Regina Smith (
Jana Stepánková), who introduces herself as Tarzan's fiancé. Tarzan, however, is in fact German Baron Wolfgang von Hoppe, whose father left for Africa with his wife and a very little Wolfgang in 1904. Soon afterwards, the news about their death arrived. The vast family property is now managed by nephew Heinrich (
Martin Ruzek). After thirty years, Wolfgang was discovered as a wild forest savage living with apes. He was recognized and taken back to Europe.
—NFA.cz