Trama:
Four prison inmates have been hatching a plan to literally dig out of jail when another prisoner, Claude Gaspard, is moved into their cell. They take a risk and share their plan with the newcomer. Over the course of three days, the prisoners and friends break through the concrete floor using a bed post and begin to make their way through the sewer system -- yet their escape is anything but assured.

Cast:

Michel Constantin Geo Cassine

Jean Keraudy Roland Darban

Philippe Leroy Manu Borelli

Raymond Meunier Vossellin / Monseigneur

Marc Michel Claude Gaspard

Jean-Paul Coquelin Le lieutenant Grinval

André Bervil Le directeur de la prison

Eddy Rasimi Bouboule

Philippe Dumat Un gardien

Albert Augier Un gardien

Jean Becker Un gardien

Gérard Hernandez Le détenu à l'infirmerie

Paul Préboist Un gardien

Catherine Spaak Nicole

Dominique Zardi Le détenu qui assiste le gardien à la fouille

Supporto: Sconosciuto,

In prestito: No

Rapporto: Unknown