Directed by Kim Jung Min, The Man Living In Our House revolves around the story of Hong Na Ri (Soo Ae) is an airline stewardess. During a visit to the tomb of his mother, she had stumbled into Go Nan Gil (Kim Young Kwang). Gil Go Nan introduced him as “stepfather” of her, he was married to the mother of Na Ri before she died. Currently, he is living in her mother’s old house and took over the restaurant that her mother used to manage. However, Hong Nan Na Ri Gil Go skeptical and decided to plan an opponent to prove that lie.