Moscow of 1993. Tanks in the streets. The troops are storming Parliament. Blood is flowing, innocent people die. These events are the starting point for understanding what is going on between two women in the film - Olga and her mother, Marina Nikolayevna; and in a broader sense, between two generations of Russian people who found themselves on the opposite sides at the turn of the century. Years passed. Olga left Russia. Marina Nikolayevna remained at home without any means of existence. Three suicide attempts were her answer to the hostile reality. Olga decides to save her mother. Her only hope is Professor Stankovsky's world-renown clinic. His experiments on "deleting negative memories" give hope to thousands of desperate people who have lost peace and sleep, who are constantly fighting their own past. But is it so simple to renounce your past and yourself, in order to be happy?