The Swordsman (1948) Joseph H. Lewis, Larry Parks, Ellen Drew, George Macready

Fusako Owada, a young woman in postwar Japan, is the mistress of a notorious drug dealer. Fusako's tenuous grasp on meaningful life is shaken when she learns that her lover is having an affair with her sister.

The behavior of Mark Lamphere, an architect, turns strange shortly after his honeymoon with bride Celia, who begins finding out that Mark has many secrets. It turns out he was married before, his wife died suspiciously and they have a son. He also has a fiercely loyal secretary, Miss Robey, whose face is disfigured. Mark appears to be somewhat delusional and could be intending to murder Celia inside a room he keeps locked. The disturbed Miss Robey ends up setting fire to the house, whereupon Mark redeems himself by saving Celia's life.