In Algiers, Cesar Sarati who grudges the dockers, is, without realizing it, in love with his niece. But Rose loves Gilbert, a former gambler and debauchee who, out of love for her, changes his life. On the wedding day, Sarati commits suicide.
An honest civil servant learns about his wife’s infidelity. He pretends not to be aware of it and decides to start a businessman career. He soon becomes extremely wealthy and thinks he can win her back.