Police Captain Igor has long been trying to arrest the agile swindler "Grandma", who always sews him into a fool. The girl skillfully carries out illegal activity, but at the same time always comes out of the water clean.

One day, Igor still manages to take it hot, but very soon this story takes an unexpected turn. The girl turned out to be an important and the only witness of a high-profile case, and therefore law enforcement agencies are forced to come to an agreement with the criminal. In exchange for her consent, she is promised freedom. Moreover, the antics of previous years will also be "written off" by her testimony.

Driven into a corner, she agrees to cooperate. Now the girl is a participant in the witness protection program. After changing her appearance and name, she was sent to another city, along with a police captain. They are housed in a communal apartment, where nothing can be hidden from neighbors. Here they have to pretend to be a married couple, which is quite difficult to do, given the mutual hostility. Their neighbors are an elderly writer and two children, whose mother disappeared somewhere without a trace.

Yes, under one roof were completely different personalities who have something in common. Each of them is alone in life, and it is here that the feeling of loneliness intensifies and becomes unbearable.

Thirsty for sincere communication and good company, this society manages to create comfort for each other and become a real family.