L'X Noir
- Originální název: L'X Noir
- Žánr: Krimi
- Režie: Léonce Perret
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.
