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.

In an ordinary looking apartment, a father and daughter play a game of hide-and-seek. While searching for his daughter, she is nowhere to be found... Later, a video is posted which shows the girl holding a sign with a mysterious set of numbers. But what do they mean? She’s the first of several children who disappear without a trace in a small industrial town. Young detectives Varta Naumova and Maksim Shumov take on the complex case and… their own demons. Varta is a distant person and extremely protective of her personal space, while Maksim comes across as an easy-going sociable guy. Both have experienced trauma in their lives, and this case touches them on a deeper level. They become personally vested in finding the children and apprehending the kidnapper as they face their respective pasts.

After faking his own death, notorious gangster Volkov (Wolf) retires overseas with a new identity. When his parents die in a car accident 20 years later, he secretly returns to his hometown and learns that the nephew of a local mobster is responsible for his parents’ death. After killing the man, a battle between the old-newcomer and local crime bosses unfolds.