Heart's Memory(Память сердца)

A sudden disaster ruins the life of a 17-year-old girl Sahsa. Her parents and a two-year-old sister Dasha are burnt to death in their own house. It turns out that gangsters threatened Sahsa's father. They made him sell his successful business for nothing. Sahsa is at a loss. She has no home, no money, no relatives. She can't live in her native town any more. The only thing that makes her move ahead is to find out what happened to her family. Why the remains of her little sister haven't been found?