Peter the Great dies and passes the Russian throne to his 16-year-old daughter, Elizaveta. The young, carefree and energetic princess is not ready to give up on gorgeous dresses, handsome admirers and passionate love affairs for the crown. However, fate has other plans for her. Elizaveta is forced to take the path of dangerous adventures in order to deal with court intrigues, stalking and evil plots. Three fearless bodyguards of the princess will accompany her along the way and are willing to do whatever it takes to save the future Empress’ life.
A rich heiress, Maria Sorokina, goes missing after a quarrel with her husband. Boris Novinsky, head of the police station, entrusts this case to a young detective, yesterday's intern, Alina Novinskaya, his daughter. It turns out that a maniac who strangles and disfigures young women who look like Maria Sorokina operates in the town. The search for Maria brings her husband, Mark, and Alina together. Seven years later, Alina and Mark have a strong family. But one day, Mark goes on a business trip and meets there a woman who looks like his missing wife, Maria, like two peas in a pod. Mark is unable to master the feelings that have overwhelmed him again and leaves Alina for a woman who so frighteningly resembles his late first wife. Meanwhile murders of young women are renewed in the town - a mysterious maniac, already forgotten by everyone, goes hunting again. Alina, abandoned by her husband, returns to the police work and the search for a maniac, which leads her to a shocking discovery.
A wealthy and influential family hires Katya as a nurse for a dying father. Most unexpectedly, the young woman becomes his closest confidant and the only person in his life whom he can trust. Passions run high around Katya as a huge inheritance is at stake. From a modest nurse, whose only task was to care for the sick in the last days of his life, Katya involuntarily turns into an active participant of the family drama with all its hopes, fights and disillusions. It turns out that the seemingly happy and tight-knit family has its skeletons in the closet, and these secrets can come at a price of a human life.
Different as a plus and minus, the main characters intersect at first only for work, but soon a warm relationship arises between them. They have a different approach to investigating crimes, but the goal is the same. Sometimes it seems that they cannot exist side by side, but their agency successfully investigates a variety of cases – from spying on an unfaithful husband to solving crimes of national importance.
A soldier who was considered dead for six years is quickly becoming the property of the media. The released Bragin is in a difficult psychological and physical condition, he is exhausted by torture and long years of solitary confinement.
18th century, The Russian Empire. The series tells the life story of Darya Saltykova, who was called Saltychikha by serfs. The landowner brutally tortured about one and half hundreds peasants, for which "Russian Elizabeth Bathory" was imprisoned at underground prison, where she spent 33 years until her death. How a young girl who was brought up in a monastery turned into a monster?