A Taiwanese grandma (Ahma) has to travel from a rural town in central Taiwan to the capital city of Taipei in the north to pull Alan, her American-born grandson, out of jail before he gets deported by a vindictive police officer.
Among the tall buildings of the city, the lonely security guard David hides a beautiful field that no one knows, and meets an egret there; but the expansion of the city never stops. One day, the field is destroyed, the egret disappears without a trace, and David begins to see mysterious illusions…
