A foundling is left in front of the home of a rich aristocratic bachelor during the Nice carnival. The marquis adopts the child but soon finds that he cannot cope, so he employs a nanny who turns out to be the child's real mother. Just as the two have fallen in love and there is a happy ending in sight, the woman's husband - long thought dead - turns up.
An imaginative wedding scene shot in silhouette, begins a tale of murder blackmail and romance covering a period of about 18 years, ending around 1923. Film composed of 10 episodes: 1.- L'Ami felon. 2.- Le secret de L'etang. 3.- L'Ambition au service de la haine. 4.- L'Implacable verdict. 5.- Le Pont vivant. 6.- La Voix du sang. 7.- Les Caprices du destin. 8.- En Champ clos. 9.- Les Angoisses de Corradin. 10.- Le Triomphe de L'amour.
