Several foreign agents are interested in a famous Austrian scientist, the discoverer of an artificial protein. The endangered man never notices the trouble around him. His protection was entrusted to the mysterious Madame Elizabeth, amongst agents famed as the ' 006, in fact, working for State Security...

• Filmové studio Barrandov
• Valentina Thielová
• Miroslav Macháček
• Jiří Adamíra
• Josef Vinklář
• Jiří Holý
• Jaroslav Raušer
• Josef Bláha
• Ilja Prachař