Following the unexpected passing of his wife, Eun Sang-Chul (Lee Sung-Jae) and his four children find themselves struggling. Enter Park Bok-Nyeo (Choi Ji-Woo), a mysterious housekeeper whose presence stirs up a series of events. As a result, Eun Sang-Chul and his children are drawn into various situations, leading the once-discordant family members to discover love and reconciliation.