Oorlog en vrede 1918
After the death of Gaston de Roqueville, Ninette marries the new manager of the Roqueville Steel-Works, Jean Ducrot. Mario Laurent, thanks to his important invention, has managed to regain a worthy position in society, ably assisted by his wife Anny, and is visited and praised by highly placed persons from the army and navy. With the support of the lawyer Hofman, Mario is put in charge of the factory after Ducrot is demoted. Under the mask of friendship and politeness, Ducrot broods on means to injure his successor and does everything in his power to thwart him.