"Moon heart" is the story of M: an old woman who lives adrift: a lonely shadow that crosses her own geography every day. She spends her days dreaming about her past, until one day she finds something very similar to her: an ant. And what does a person do when they find an ant? You crush it with your finger, you blow it away. Instead, M decides to share her world with it. A world made of nostalgic memories and a dark presence that haunts her, until the day a "mechanical angel" arrives to help her. At its core, this is a film about abandonment and mental anguish that homeless people suffer. However, it is also an extraordinary warm film with an outstanding lead performance.