A boarding school deep in the forest carries the echoes of its past inhabitants. Hints of a disturbing history and the unfolding events of the present are refracted by the multiple voices of the girls who now live within its walls, their suggestive and enigmatic accounts interweaving in a rich and unsettling chorus. When the winter months are skewered by a terrible accident, cracks begin to appear between the teachers and pupils as the girls navigate adolescence, their place in the group, and their complex and shifting relationships with each other, as well as the natural world that surrounds them and the seasons that shape their existence.