Knock on My Door (2008)

Polina and her little sister became orphans very early - their parents died in a car accident, and the girls had to survive on their own in the crazy 1990s. Polina, barely twenty years old, fell in love with a submariner, who quickly disappeared, leaving her with two newborn babies. The twins were so active that even Polina's large Moscow apartment didn't stop the dad from fleeing. Polina lived on the verge of poverty, and it could have ended very tragically if one evening her neighbor, a young businessman Pavel, did not hear a baby's cry from behind an open door. Polina was lying unconscious on the floor. Pavel took patronage over his neighbor and her boys, paid for a nanny, a doctor, and thought up a 'business' for her - she painted wooden figures as presents for Pavel's foreign partners. Such touching concern for a neighbor irritated Petrov's secretary - calculating, purposeful Elena decided long ago to marry her promising handsome boss. But Pavel chose this 'ameba' Polina - Pavel has never thought a rejected woman could be a time bomb. Now he can lose everything: Polina, children, friends, and his business.