Yuliya Rozina remembers the party when she persuaded the girl Zhenya to take drugs. She jumped off the roof under the influence of acid and died. Yuliya manages to remember Sergey's friend, who was with the deceased. Apparently he is an Anonymous person who takes revenge on the developers of Be Happy. Everyone thinks that having dealt with Sergey, the chain of murders and threats will stop. But the Anonymus turns out to be different. The deceased Zhenya is the daughter of Major Nikonov, who takes revenge on everyone who is somehow involved in her.