The idyllic marriage of Katya and Sergey falls apart when he brings his little daughter Sonya home. His explanation about his sick ex-wife seems like a lie to Katya, and she turns to a former detective for help.
Катя выясняет правду: Сергей причастен к мошеннической схеме. Мужчина признается, что его шантажировали. Катя с Игорем придумывает план, как спасти Соню.
