Young Sister in Law (2016)

When Byung-soo wins the screenplay contest, he decides to seek a place outside the city to focus on his writing. He ends up going to his college friend who moved out of the city after he got married. However, upon his arrival, he learns that his friend went study abroad a while ago and only Ji-eun, his friend’s wife, and Bo-young, Ji-eun’s friend, are living there.