Two adventurers and best friends, Roland and Manu, are the victims of a practical joke that costs Manu his pilot's license. With seeming contrition, the jokesters tell Roland and Manu about a crashed plane lying on the ocean floor off the coast of Congo stuffed with riches. The adventurers set off to find the loot.
Alain Delon
as Manu
Lino Ventura
as Roland
Joanna Shimkus
as Laetitia
Serge Reggiani
as the pilot
Hans Meyer
as Mercenary
Jean Darie
as Uncle
Jean Trognon
as Jeanjean, Laetitia's young cousin
Odile Poisson
as Yvette
Irène Tunc
as Kyobaski's secretary
Valéry Inkijinoff
as Kyobaski, producer
Raoul Guylad
as Snob
Jean Landier
as Michaux