It all started with lies. First, the girl asked Goshka and Lekha to help investigate the robbery of her apartment. Then it turned out that her name wasn’t Ira—it was Nadia, and she refused their help. And just as the kids were about to bring this liar into the open, Nadia… disappeared! Can you believe it? The boys suspect these mysterious events may be connected to something: the girl’s father is a journalist. Maybe someone was looking for important compromising material in his apartment? And so Goshka and Lekha begin the most dangerous investigation of their lives…