Bohol Island, Philippines, captivates tourists and divers worldwide with its beautiful scenery and deep-sea mystery. One day, friends who knew in Seoul visit a man who works as a freediving instructor in Bohol.
The lives of six girls belong to different worlds although connected to each other through a doll called Molly, whose existence dates back to 1976, when she appeared among the rubble of the great fire of the San Carlos orphanage, in northern Spain.