A Singing Goose

Yoon Young has been harboring feelings for Song Hyun, a friend’s wife. When he finds out that she is divorced, Yoon Young and Song Hyun take a trip to Gunsan on a whim. They find lodging at an inn where the middle-aged owner lives with his autistic daughter who does not leave her room. The four become star-crossed lovers in the city of Gunsan.
It's influenced from the original "A Singing Gooses."
(Source: HanCinema)