Uzès, a man in his forties, is arrested during his trip to Denmark. He is suspected by the police to be Paul Bernardin, a wanted murderer accused of killing his wife and three children a few years ago. While Uzès maintains that he is innocent, two amateur detectives – Léa and Christine, set out to conduct their own investigation. They know the whole affair inside out and feel certain that he is the wanted murderer. Meanwhile, in Argentina, a Frenchman in his forties with a mysterious past celebrates his wedding with his pretty, young fiancée…