Quatre de l'espionnage

... itself based on W. Somerset Maugham's novel Ashenden. In 1916, British Army officer Edgar Brodie (John Gielgud) is conscripted into the intelligence bureau. He's given the name "Ashenden" and assigned to assassinate an unknown enemy agent. Ashenden is given a "wife" (Madeleine Carroll) as part of his cover, as well as the assistance of an oddball professional killer known as "the General" (Peter Lorre). While Ashenden and the General hunt for the enemy agent's identity, the "wife" makes time with American playboy Robert Marvin (Robert Young). With Percy Marmont, Florence Kahn, Charles Carson, and Lilli Palmer.

It's interesting to see Gielgud in a leading role, although it's quickly evident why it didn't happen more often. He lacks any romantic chemistry with Carroll, and he frequently seems bored by the proceedings. Carroll and Young both do well with under-thought characters, but Lorre easily steals the picture as the strange assassin with a morbid sense of humor and indeterminate ethnicity.