Nina Pokrovskaya is a happy wife and mother who once worked as an investigator. After the high—profile case of a serial killer, she left for her family, leaving her career to her husband, a high-ranking officer of the Ministry of Internal Affairs. But one day, while taking pictures on the street, she accidentally shoots her husband with a young girl — at the moment when he should be on a business trip. Cheating ruins a normal life. Nina leaves, taking her son, and finds herself having to start over from scratch. Perhaps this is not the only mystery she will face.

The "Big Difference" is created not only for the audience, but also for those who became the hero of the parody - TV presenters and actors. A guest who comes to the studio seems to see himself through a magnifying glass, because all the details are taken into account in the parody: the character's manner of dressing, speaking, diction features, plastic, makeup, hairstyle. The uniqueness of the project is that in addition to entertainment, the program also has a developmental function. After all, our guest, who is being parodied, has a chance to look at himself from the outside, to see his shortcomings and advantages. Some people like themselves, and some don't. But the main thing is that no one remains indifferent.

Evgenia Pokrovskaya is a traumatologist at the Institute of Emergency Medicine. She fights every shift to save the lives of patients, overcoming the gender prejudices of colleagues. Despite this, she tries to devote time to her personal life.

In the center of the story is the story of two people. He is the conductor of the famous symphony orchestra, giving a concert at a Russian military base. She is a journalist who came to make a report from the scene. From the first minutes of meeting them, feelings flare up, but their first romantic evening in a distant foreign country becomes the only one and completely changes their life. The hotel is captured by terrorists. For the main characters begins a real hunt. The only hope for salvation is the ex-husband of a journalist. Only now, the recently separated spouses have a tough and insoluble conflict. Now the fate of the heroes is in the hands of the one who always dreamed of revenge.

Old age knows no national boundaries or geographical limits. She can be peaceful and happy in the circle of loved ones and become a disaster if you are abandoned by people dear to you. Man is the only living creature in the world who knows that he will die.