A boy is accidentally locked in a bank vault. With less than 10 hours of oxygen left in the vault, it becomes a race to save the boy.
Direction
Gerald Thomas before Carry On — tight, desperate, unrelenting.
Acting
Vincent Winter's silent terror in an actual vault.
Production
Real bank location shoots add suffocating authenticity.

Director
Gerald Thomas
Trivia, insights & behind the scenes
This was Gerald Thomas's only serious thriller before directing 30+ Carry On films. The vault was a real Lloyd's Bank location in London.
Released during the 1957 'free cinema' movement, it was praised for documentary-style realism — rare for British studio pictures of the era.