 A locksmith and an acrobat - Dragoljub Aleksic - made a film in 1942. in occupied city of Belgrade. That was a film about strength of body and will, about social injustice, about tender love and about himself. Dusan Makavejev enriched that film with a new screened scenes and gave us a unique movie time trip. With many authentic pictures of bombarded Belgrade we see a story about Mr. Petrovic and his struggle for Nada s love.