Philippe Perrin, a young engineer passionate about his work, leads the construction of a huge dam in the High Alps. Like all the men who work on the building site, he gives the best part of himself. Unfortunately, his health deteriorates but he refuses to follow the doctor's orders as well as the advice of Micheline, a young nurse who has fallen in love with him. However, driven by the evolution of his illness, Philippe finally makes up his mind to go down to the valley for a treatment. On the very day of his departure though, a young Arab worker gets killed in a rock crusher...
Gérard Philipe
Michèle Cordoue
Georges Chamarat
Umberto Spadaro
Valeria Moriconi
Olivier Hussenot
Alberto Bonucci
Jean Lefebvre
Jean-Jacques Lécot
Michel François
Robert Bazil
Jess Hahn
Mohamed Ziani
Augusto Mingione
Marcel Bozzuffi
Georges Hubert
Louis Velle
Jacques Moulières
Giacomo Furia
Lina Furia
Gino Marturano
Gabriel Gobin
Charles Denner
Pierre Massiot
Émile Genevois
Gérard Oury
Paola Borboni
Raymond Brun
Olivier Darrieux
Georges Galley
Gérard Hernandez
Jacques Morlaine
Madame Pâquerette