
Nadia decides to conduct an experiment, she calls the murders into the mansion to check how much they obey her, and whether she can control them. A large accumulation of mutants alarms Dr. Bryl, he guesses the causes of the congestion and sends patrols for the alpha female. Valera fell in love with Katya, but as soon as she approaches the shelter, Aizhan screams.
A month ago in Moscow, there was an outbreak of an unknown disease with a 100% fatal outcome for the men, the girls turned into mysterious and bloodthirsty creatures, murders. Survivors wake up in the morning from the unexpected screams of the mutants that penetrated the base. It turns out that someone opened the door to the mutants from the inside. But who opened the door and why?
Valera's plan to break the checkpoint failed. Nick accuses Scatha of inactivity and softness and breaks off relations with him, but in fact, the reason is much deeper - the girl is in love with another member of the group and can not hide her feelings anymore. Who is in love with the impudent Nick? Who will betray friends to save himself?