Enigma (2001)

march 1943: german u-boats unexpectedly change the communication code. in a few days the young english scientists must decipher the new, the enigma. in those feverish hours everything depends on the lucidity of jericho, a young and brilliant mathematician deciphering codes, who had his nerves shaken by his love with claire, a foreigner who then disappeared into thin air. faced with the double problem, jericho finds decisive help in hester, the plain but nice friend.