A famous TV journalist is murdered at a luxurious dacha on the shore of the Caspian Sea. And, as required by the genre, everyone who happened to be at the dacha at that moment is suspected. None of the many versions has convincing evidence. Expert analyst Drongo understands that the case has reached a dead end. And… he comes up with his own—always paradoxical and unpredictable—version. What if the killer is among those who, absolutely, are beyond suspicion?