Three criminals plan to break out of prison the day before their release in order to carry out a daring jewel robbery, intending to establish the perfect alibi by returning to jail afterwards. First however they must get out, a task made more difficult by a new, stricter prison officer.
Peter Sellers
as Dodger Lane
Maurice Denham
as The Governor
Lionel Jeffries
as Chief P.O. Sidney Crout
David Lodge
as Jelly Knight
Bernard Cribbins
as Lennie Price
Wilfrid Hyde-White
as Soapy Stevens
Irene Handl
as Mrs. Price
George Woodbridge
as Chief P.O. Jenkins
Liz Fraser
as Ethel
John Harvey
as Governor Rockhampton Prison
Beryl Reid
as Miss Pringle
Noel Hood
as Miss Prescott
