Hyeyoung, a mother who loves her daughter dearly, and Yuri, a daughter who adores her mother. Hyeyoung, a kind and graceful mother, and Yuri, a model student, are the perfect and enviable mother-daughter duo in everyone's eyes. One day, Yuri, who was believed to have gone to school, is found dead, shaking the foundation of everything. While the detective considers the possibility of suicide, Hyeyoung refuses to accept it¡¦