Le feu follet
The Fire Within (French: Le feu follet [lə fø fɔlɛ], meaning "The Manic Fire" or "Will-o'-the-Wisp") is a 1963 French drama film directed by Louis Malle.
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Life has become unbearably painful for Alain who is in his early 30s. He once used alcohol to dull the pain. His estranged wife in New York has paid for a cure at a clinic in Versailles and sends an emissary, one of the many woman he has known, to see how Alain is. She sees only the surface as does his doctor, who says it's time for Alain to leave the clinic. He goes to Paris the next morning to try to find the answer to his existence; will he?