Perry Ashwell is a self-satisfied child psychologist who takes his colleagues and wife somewhat for granted. So confident is he of his position that he introduces rich attractive painter Octavio Quaglini to his office and home. Quaglini is no respecter of convention, and April Ashwell is extremely attractive.

Pepe Le Moko leads a gang of jewel thieves in the Casbah of Algiers, where he has exiled himself to escape imprisonment in his native France.