Antoine (Auteuil) is a headwaiter at a Parisian restaurant who loves his job, his girlfriend, and charmed existence....After he saves a distraught man (Garcia) from killing himself, he begins to feel strangely responsible for his well-being. Desperate to help "Mr. Melancholy" find happiness and get him out of his hair, Antoine secretly sets out to play cupid and find the ex-girlfriend (Sandrine Kiberlain) that drove his new friend to despair. Fate has seldom been crueler. When Antoine finally tracks the woman down, his final act of kindness quickly becomes a fiasco of friendship, food, and passion when he falls for her himself! Now three strangers brought together by fate are about to learn there is a fine line between helping others, and helping yourself!