《蝴蝶》讲述了丽莎（柯莱儿布翁尼许Claire Bouanich 饰），今年8岁，单亲，喜欢提问，各种各样童稚的问题。邻居的爷爷（米歇尔•塞罗 Michel Serrault 饰 ），儿子已经去世，脾气古怪，有收集蝴蝶标本的癖好。一天，丽莎闯进了爷爷的密室，发现了五彩斑斓的蝴蝶标本。爷爷还说，他要到山上去采集一个叫“伊莎贝拉”的蝴蝶，丽莎大喜，要跟爷爷一起去探险，她多么希望跟着爷爷去看满天飞的蝴蝶。一路上，丽莎给爷爷添了不少麻烦，因为她有问不完的问题，还放走了爷爷采来的蝴蝶。丽莎掉进了一个山洞，爷爷着急，找来了救生人员。两人的友谊、亲情，与美丽的大自然融为一体。
This is the story of a young girl named Elsa who was raised by a single mother (Isabelle) in the city. Isabelle and Elsa begin the film moving in next door to an elderly man who collects butterflies (Julien). Isabelle who "spends a lot of time with her friends" does not pay much attention to her daughter who walks home because her mother forgot to pick her up from school. After meeting her new neighbor, Elsa finds out about the butterflies and in short annoys Julien for a while. Julien receives a mystery package from a fellow entomologist. Julien sets out on his annual attempt to find a rare species of butterfly that he had once promised his son he would find (son dead) in the French country side, specifically a region known as Vercors. Elsa stows away in his car. After being discovered she convinces him to let her come to Vercors with him. They bond while hiking and camping until Julien, who is initially annoyed by Elsa, near the end of the film seems to have a grandfather-granddaughter relationship with her. Elsa falls in a well. The police arrest Julien. Elsa tells everyone it is cool. Isabelle starts paying attention to her child. Julien and Elsa are friends. The mystery package contained a caterpillar which turned out to become the rare species of butterfly Julien set out to find. The species is called Isabelle. So Elsa finds her mother (Isabelle) and Julien finds the butterfly (Isabelle). Surprisingly happy feel for a french film.
