A Bird Goes By(2019)

On his son's first birthday, Siu-cheung takes his family to the countryside for a family portrait when he suddenly receives a call from his mother. His father, a bird photographer suffering from dementia, is missing. Siu-cheung looks for him in the country parks where his father visits to take photos of birds. He fails to find his father, but finds himself getting closer to his father's inner world. He slowly gains more appreciation and understanding of his father whom he considered irresponsible. As he goes over his father’s works at home, a secret unveiled……

Official site