On the outskirts of Moscow, in a grim, sparsely populated house-tower, a motley group gathers on a late evening in the most ordinary apartment. Among them are a housewife, a psychologist, a secretary, a prostitute. They came for a psychotherapeutic session to sort out their own problems, get rid of fears, complexes, and painful memories. Instead, they became hostages of someone’s evil will.
Does any of them have a chance to escape from this “island of evil,” or are they all doomed? After the death of the first victim, those gathered begin their own investigation. But they must hurry—before the maniac kills them one by one. Still, who is he? Maybe the one who calls loudest for destroying the madman?