Young Nam was a promising graduate of the police academy before she was transferred to the small seaside village, which was caused by her misconduct. On her first day in the village, she encounters with Do Hee, who is the girl living in the town, seeming to have a somewhat gloomy looking face. As Young Nam tries to accommodate with her new surroundings, an accident of Do Hee’s grandma getting killed by falling in the seashore cliff happens. As to protect the girl from her stepfather’s abuse, Young Nam let Do Hee stay at her place but things turn out to be more mysterious as she gets to know her.