Amélie is home schooled by her mother. She has a fantasy life. After the death of her mother, Amélie leaves home and becomes a waitress at café.
She finds an old metal box of childhood memorabilia hidden by a boy who lived in her apartment decades earlier. She resolves to track down the boy and return the box to him, and promises herself that if she finds him and it makes him happy, she will devote her life to bringing happiness to others and helping others as much as she could.
Amélie grows up the lonely child of parents who do not know how to show their love for her. She becomes a thoughtful and quiet girl who decides to change the lives of those around her, opening hearts to the adventure that is waiting for them, taking revenge on a cruel grocer, bringing together a couple who are afraid to show their longing for each other, and bringing the outside world to a reclusive painter and to her own father.