On the Brink of Paradise (/ transl: On the Ruins of Paradise) is a 1920 German 90-minute film directed by Josef Stein and featuring Carl de Vogt in the title role of Kara Ben Nemsi. Béla Lugosi was thought to have appeared in a supporting uncredited role, but this is disputed. The film was an adaptation of part of the 1892 Karl May novel Von Bagdad nach Stambul and is now considered to be lost.

Plot

Kara ben Nemsi and his servant Halef Omar come across a group of Persians headed to Baghdad, led by Prince Hassan Ardžir-Mírza. The Persians are attacked by their enemies, the Kurds. Prince Hassan discovers there is a traitor among his people. Kara ben Nemsi offers to help guard the caravan on its journey to Baghdad.