Directed by Albert Capellani.

A moneylender kidnaps the young son of a rich widow as part of a plot to cheat her of her fortune. The boy is sent away on a fishing boat with the intention of drowning him, but a kindly old fisherman intervenes.

A mysterious evildoer terrifies the French Riviera. That mysterious character, which is hidden under the personality of James Pearce, a diamond-maker, calls himself The Black X. This time, the Black X has noticed the rich jewels of a celebrated singer and, in the company of her henchmen, is preparing to carry out the great robbery.

If an old man's niece does not claim her inheritance at the notary's office by the appointed time, his fortune will go to his housekeeper.

The countess Hélène de Rochegrune awaits the return of her fiancé who went to the front.

Part of the series La Vie telle qu'elle est.