Bittu: Couple Exchange (2020)

Original title: 빚투: 부부교환

Deok-goo lives as a fisherman in a seaside village. He borrowed money from Dong-choon, a private moneylender, but the situation is not favorable. Deok-goo, who came to collect money, begged Dong-choon to give him a week's end. Dong-choon says he will use Deok-goo's wife for a week instead, while Deok-goo, who has no other choice, accepts Dong-choon's request... Blues of human desire and affection living in the background of the beach.