Ahmed, an Algerian laborer and young father, leaves his country and arrives in France, hoping to find a job through Salah, a friend who has been living in the Paris suburbs for several years. He is disappointed when he arrives in Nanterre, where Salah lives in a shantytown. Without any support, Ahmed has to make the daily rounds of the employment offices, like so many other immigrants who, like him, have been lulled into complacency.
An industrialist is falsely accused of murdering one of his creditors and, because he cannot reveal that it was his mistress who gave him the money needed to pay the debt, he is sentenced to life in prison. He escapes, makes a fortune, and, years later, discovers the real culprit.
In a mysterious French castle dark meetings and apparitions happen, seasoned by nauseating erotic menages. The involvement frantically increases up to the amazing epilogue.