Méphisto

Méphisto is the title of a 1931 French film serial co-directed by Henri Debain and Georges Vinter, starring Jean Gabin and René Navarre. It was Gabin's first role in a long and illustrious career, as well as Viviane Elder's first role. The music was by Casimir Oberfeld with lyrics by Charles L. Pothier, sung by Jean Gabin.

Synopsis from Wikipedia, CC BY-SA 4.0. Everything below written here.