The murder of Emili, a young girl, leaves the inhabitants of a small Japanese village in shock. The raped body of Emily is found by the four classmates with whom she was playing. The murder is never solved. Emili's mother Asako is torn by grief and puts a curse on the four girls when they claim that they don't remember the killer's face. Each of the girls, in their own way, will do their penance for their silence. Deeply struck by the words of Asako and burdened with her curse, the four girls are forced into adulthood which eventually triggers a tragic chain of events. Adapted from the novel by Kanae Minato.