In the center of the plot is an exemplary husband and exemplary father Oleg. His life is measured and planned for years to come. But fate has its own plans: the young beauty daughter Alyona falls in love with the once best friend and peer of her father Anton, with whom they are united not just by friendship in the distant past, but by a stormy youth in all respects. So stormy that Oleg prefers to keep it a secret even from his family. As a loving father, Oleg is simply obliged to prevent the union of his only daughter with an immoral type, whose past makes him the worst candidate for son-in-law in the world. Anton continues to live that reckless life that both lived 30 years ago, but Alyona seems to like just such guys.

Rita, a fragile-looking chemistry teacher, remains out of work for having connections with a student. But thanks to her skills, she manages to earn easy money by cleaning the cottage. However, this cottage turns out to be a crime scene, and Rita herself finds herself in the epicenter of criminal showdowns by local bandits. However, Rita is not so simple — all this time she has been living undercover on someone else's passport. A few years ago, she already had to flee from her native St. Petersburg to a seaside town to save her life. After all, Rita is the only living carrier of the formula that her pursuers really need.