Childhood by the River(2014)

When Masha was ten years old she lived in a far away northern village, where she was the only pupil in her school. She loved her village - a quiet place without any stores, cell phones, and other spoils of civilization. Masha dreamed to build a clinic there. Masha is seventeen now. She goes to a boarding school in a nearby village, and realizes that she needs to leave.

Official site