A sudden tragedy shatters the life of 17-year-old Sasha: her entire family - parents and two-year-old sister Dasha - perish in a fire in their own home. It is revealed that Sasha's father, Alexey, was being threatened by gangsters who demanded that he sell the family's successful business for a pittance. But could they really commit such a brutal crime and wipe out the entire family, accidentally leaving Sasha, who was not at home, alive?
Sasha is at a loss: with no family, no home, and no means of support, she can no longer live in her hometown of Nizhnedonsk. She finds her only purpose in understanding what happened to her family and why no remains of her little sister have been found.