A respected gangster, Justin, finds himself in a deadly feud with his rival, the unscrupulous Esposito. The latter plans to steal a cargo of opium bound for China and to have Justin killed.

A young noblewoman is unhappy about needing to marry the village ironmaster for financial reasons, but later comes to appreciate her husband.

Madame Leclerc, concierge of a beautiful place on Montmartre, has three daughters who are ready to get married - but things do not always go as planned.