Everything will Disappear... The Secret of the Scarlet Letter(2017)

Original title: 색시공... 주홍글씨의 비밀

In a three-story villa in Seoul, a widow lives on the first floor, a student who works to feed the dog of a professor at his school who is away on work lives on the second floor and a woman who works at a karaoke bar lives on the third floor. The woman on the third floor comes home on her bike and takes a shower; this is where the movie begins.