Korean Movie Stepmom (2017) tells of a man named Joon-ha. He often spends the night drinking in a nightspot.
One day he meets a beautiful woman older than him. She really likes her and hopes to be her lover. From that day Joon-ha fought to find her. But he never met.
One day she came back to meet her with her father. Apparently the woman will marry his father. The three ended up living together. Joon-ha gets closer to that woman who is now her stepmother.
Both also like each other. One day when his father left home, the two were involved in an undeserved love.