The Butterfly, or Le Papillon in original French, is a film by Philippe Muyl starring Michel Serrault and Claire Bouanich.
Julien, an aging widower, is a passionate butterfly collector. Elsa, a nine-year-old girl, with her mother, who is a very young woman names Isabelle, just moved into his apartment building. The mother is usually away, and Elsa starts visiting Julien. One day, Julien decides to go to the Vercors plateau in search for a rare butterfly called Isabelle which can live for only 72 hours. Elsa decides to join his adventure, without telling him, and hides in his car.
Julien grudgingly agrees to let her stay after her mother failed to respond to his calls. During the search Julien eventually reveals butterfly collecting was a hobby of his son, who then died very young. His son had asked Julien to find the Isabelle butterfly, and so this is why the butterfly was so important to Julien.
The story complicates when Elsa's mother reports her daughter kidnapped. The police send...