

A renowned safecracker and his crew try to rob a bank by entering the vault through the sewer system.
Direction
Don Sharp squeezes maximum tension from minimal runtime.
Editing
Ruthless economy—no scene wastes a second.
Practical Effects
Genuine sewer location shooting, you can smell it.

Director
Don Sharp
Trivia, insights & behind the scenes
Shot on a shoestring budget in just three weeks, forcing Sharp to rely on real London locations including actual Victorian sewers.
Part of the 1960 British 'quota quickie' boom—films made fast to fulfill domestic content laws, yet this transcends its origins.