Purge (2012)

Allide experienced The Great Terror under Stalin’s regime, and decades after her hometown people were deported to Siberia, she lives alone in an isolated house. One night, she finds a young woman in her yard – Zara has just escaped from the claws of the Russian mafia that held her as a sex slave. Survivors both, Aliide and Zara engage in unearthing each other’s motives and gradually, and their stories merge into one, revealing the tragedy of a family during the cruelest years in Estonian history.

Source: TMDb