In a house of three people, there is a young couple living with a father in his 50s. Although he is old, the father still shows his strong health. The son goes to work from morning to afternoon and the daughter-in-law Dutifully taking care of the housework in the house, others look at it and think that this family is living a very happy life, but that is not really the case. The husband unfortunately has an erectile dysfunction so it's difficult for him to have children, and the wife always wants to have a baby to make her family happy. The situation is so dire that she can't keep her heart for him. The person who shared the same bed for so long had to have an affair with her father-in-law, to find a hope, another path to achieve the goal she had always dreamed of. But, what will happen tomorrow when the husband learns that the child is not his child but his father's child?