André Cerf

French filmmaker Jean Renoir would later remark that he directed the sensual dance fantasy Charleston because he'd "just discovered American jazz." He also had some stock footage left over from his previous silent success Nana, and decided it would be provident to fashion a new film from these leavings. Even without the benefit of sound, one can hear the jazzy rhythms of Charleston through the exuberant gyrations of an African-American dancer... (All Movie Guide)

A banker whose unusual generosity gets him put in a mental institution escapes and hides out in a boarding house.

A banker, having squandered a fortune because of his philanthropy, is locked up in a mental hospital by his relatives. He manages to escape, taking refuge in a boarding house where he strives successfully to give happiness to the boarders, making them actors in a comedy of which he is the director. (KG)

On his way to work on the subway, Pierre catches a glimpse of a man seemingly stabbing a woman.