Masha Alentyeva, nicknamed Mukha, goes on vacation to her native seaside town. Unknown men with stockings on their heads arrange a car accident for her on a mountain road. Having fallen into their hands, Mucha finds himself at an abandoned military base in an unknown corner of the globe. The criminals call her “sister” and seem ready to share their secrets. Masha begins to realize that she has been confused with someone. And she seems to guess with whom. The fly is even scared to think what will happen to her when the “brothers” understand that she is not at all who she claims to be...