Daineka was dying of curiosity - they were filming a movie in the apartment on the floor above! She managed to get there and even meet members of the film crew. Actress Lidiya Polezhaeva made a special impression on the girl. But soon she was found dead in that very apartment... The upstairs neighbor who rented the apartment to filmmakers turned out to be the famous writer Vasily Tikhonov. In Soviet times, he became famous as the author of a single novel, and then found himself at the center of a scandal: he was suspected of plagiarism, but this remained unproven... Unwittingly drawn into the investigation of the murder of an actress, Daineka came to a paradoxical conclusion: the criminals were looking for Tikhonov’s novel in the apartment . But not the one that was published in millions of copies, but a draft manuscript, where some kind of secret is encrypted...