Ключ от миража

A stranger's house, a stranger's apartment... Never before has press center employee Katya Petrovskaya felt so alone and so scared. But the operational situation requires that someone be present in the enormous house, where dark and, at first glance, senseless murders are taking place. Numerous facts have been gathered, but a convincing version has not been established. The latest murder, which occurred almost before Katya's eyes, has not clarified this dark case. Nevertheless, Katya feels that the solution lies within the powerful walls of the house, in its dark windows, gloomy staircases, in one grim day of a distant past…