Unlock the secret.
The story of the WWII project to crack the code behind the Enigma machine, used by the Germans to encrypt messages sent to their submarines.
Dougray Scott
Tom Jericho
Kate Winslet
Hester Wallace
Saffron Burrows
Claire Romilly
Jeremy Northam
Mr. Wigram
Nikolaj Coster-Waldau
Puck
Tom Hollander
Logie
Donald Sumpter
Leveret
Matthew Macfadyen
Cave
Richard Leaf
Baxter
Bohdan Poraj
Pinker
Paul Rattray
Kingcome
Tom Fisher
Upjohn
