In this twisty thriller about Britain's secret code breakers during World War II, Tom Jericho (Dougray Scott, best known as the villain of Mission Impossible 2) devised the means to break the Nazi Enigma code, but a relationship gone awry sent the erratic genius into a breakdown. Now the Nazis have switched their codes, just as huge convoys of ships with crucial supplies are crossing the Atlantic--and squads of U-boats are hunting for them. With the help of his former lover's roommate (the ever-adorable Kate Winslet) and under the watchful eye of a suspicious intelligence officer (Jeremy Northam), Jericho struggles to figure out if there's a spy among the code breakers as they fight to crack the new Nazi ciphers. The plot gets extremely tricky but the excellent cast keeps you engaged. Written by the extremely tricky playwright-screenwriter Tom Stoppard (who cowrote Shakespeare in Love and Brazil).