The hero is a black man from Martinique who feels nostalgic for his island and is on his own in France. He falls in love with an au pair girl but has a love affair with a married woman, Mrs Courtalès. He kills the husband in self-defense. But eight months later, he is arrested by the Police. Philippe's fate depends on a child's birth. It will not be what he's expecting.

Philippe, un jeune Martiniquais seul à Paris, s'éprend de Margaretha, une Suédoise qui lui inspire l'écriture d'un roman. Grâce à Philippe, Margaretha est bientôt engagée comme fille au pair par M. Courtales, un agent littéraire. La femme de celui-ci entreprend de séduire Philippe, en mettant en doute la fidélite de Margaretha.