Marina takes the day to plan her daughter Tanya’s birthday, but work issues keep interrupting. Finances are off at her flower shop front, a new sex worker needs to be “interviewed,” and the day ends with a shocking discovery about one of her girls.

Disposing a dead body inside of a mattress while very pregnant is exactly as difficult as it sounds. Can Marina get away with it? Meanwhile at home, her daughters stir up their own trouble and her mother-in-law hides something big from her.

When Sveta’s body is found, Vera, a troubled but capable young detective, is called to the crime scene. As Marina and Galina try and erase more evidence of the murder, they realize Sveta and her boyfriend were blackmailing someone before she died.

Marina convinces Zhenya to withdraw her missing person report on Sveta. But when the police ask Sveta to come in for a statement, Marina must find a substitute. Marina’s constant absence starts causing younger daughter Tanya distress.

Marina and Galina believe Sveta was blackmailing her last client and was murdered for it. When they set out to recover his identity, they’re led to a car compound where Galina runs into trouble. Marina catches Artyom with another woman.

Misha and Zhenya are shaken down by two men looking for the memory stick with the blackmail evidence, but Marina has it. Zhenya formulates a plan. The police get a confession for Sveta’s murder from a known serial killer, but Vera is not convinced.

Vera suspects the mattress was moved by a woman. Misha kidnaps Zhenya and uses her as leverage to force Marina’s hand. After her extortion plan goes wrong, Katya is desperate for quick money and meets with a madam. Will it be her own mother?

Four years ago, Marina and Artyom witness their friends get hit by a drunk driver. When the case is covered up from the top, Artyom takes a stand and corrupt officials make their lives a living hell. It’s the origin story of Marina’s escort business.

Antonina starts questioning her daughter-in-law’s finances. As Marina goes to rescue Zhenya, she receives a disturbing phone call. This time it’s Marina who is being blackmailed. If she wants to avoid prison, she must get another girl killed.