Port de Lilias was Rene Clair's first film since 1955, and his last until 1960. It is more serious than most of Clair's efforts, ending with a death that is all the more surprising in that the director never quite prepares us for it. Pierre Brasseur plays Juju, a likeable ne'er-do-well who suddenly finds himself the "guardian" of a murderer named Barbier (Henri Vidal). When his identity is discovered by the heroine Maria (Dany Carel), Barbier wins and betrays the girl. This galvanizes the otherwise easygoing Juju into drastic action. Functioning as a Greek chorus throughout the proceedings is well-known balladeer George Brassens.
by Hal Erickson synopsis