Petersburg, 1903. A world of luxury and leisure for men, a world of fear and submission for women. Kseniya and Stesha work in an underground brothel under the control of a pretty and ruthless lady. Girls sell men their bodies, feelings, flirting and the illusion of love. It seems they have nothing but beauty. In fact, they have access to a secret power - purity of soul and desire for freedom. And with this power they can change everything.