Lilya is going to get married, but suddenly her future mother-in-law comes to her apartment with the groom. Lilya is sure that the woman is plotting and is going to separate them. The Ivanovs find out that a certain woman has settled in her mother-in-law's own apartment, and Lily's fiance himself is in mortal danger. What is the mother-in-law really up to? How to save the groom? Meanwhile, Valera's mother-in-law, Valera's mother, came to the Ivanovs' house. A domineering woman used to command her son and dictate her own rules. Valera will have to find the courage to figure out her difficult relationship with her mother.