Plot of the series:
　　In the series “Catherine Season 4 Favorites,” the reign of the Great Empress of Russia, Catherine Alekseevna II, continues. The events take place in 1779, when the queen has been on the throne for seventeen years and has reached the peak of her greatness. Her fame spread not only to neighboring countries, but throughout Europe. Such a nickname as “Great” was assigned to her by the high society of Europe, thanks to the efforts of the influential Princess Dashkova, who was always devoted to Catherine II.

　　Kalix, a student hailing from a family of doctors who decided to tread a different path and take up Legal Management at a University. During that, he crosses paths with Luna, an Architecture student from the University of Santo Tomas.

一名旅居海外的印度新郎在婚礼前几天身亡，两名警察必须揭开这桩谜案的真相 — 但他们自己生活中的麻烦也接踵而至。