Maria Celeste is a widow that lives in a retirement home. She is stingy, unpleasant, solitary and looks down on people. Every Sunday Maria sits alone on the park bench, though she tells everyone that she goes to her son's to cook a lovely meal. But on that Sunday, while dozing on the bench, a young girl places a ten month old baby in her arms and runs away leaving Maria stunned and confused. Finally the girl comes back and they start to know each other. The girl asks Maria to take the baby for a second, crosses the street and a tram hits her. She dies without a reason on a warm summer morning. Maria is alone with the baby. Her Maria Celeste's story begins.