Humming (2015)

A vagrant trumpeter Ozu returned to his seaside hometown with despair. But the town had totally changed from what he knew - with only one exception: the public bathhouse. In the long-forgotten place, he hears somewhat nostalgic humming from the women's bath, which he decides to perform as his own. The encounter with a mysterious "humming girl" and his old friend Nishikigoi changes Ozu's life.