A renowned safecracker and his crew try to rob a bank by entering the vault through the sewer system.
William Lucas
as Philip Bowman
Andrew Faulds
as Inspector Rankin
Colette Wilde
as Ruth
Stratford Johns
as Lawson
Vilma Ann Leslie
as Mabel
Edward Cast
as Clayton
Charles Vance
as Eddie Holden
Jack May
as Edwards
Eric Corrie
as Detective
Arthur Skinner
as Plainclothes Man
Douglas Muir
as Beaumont
David Williams
as Constable
