More recently, Zoya Sviridova was happy and satisfied with her life, but now she suddenly found herself in the deepest depression. And all because of her gigolo husband, who left the girl a few months ago, took away half of her fortune and her beloved adopted son. She has only one support left - her sister Sveta. She is trying with all her might to return Zoya to normal life, but she succeeds with great difficulty. But still, Svetlana could not save her sister. One day, coming to Zoya’s house, she found her already dead. It would seem like an ordinary suicide - there were plenty of reasons, but the noose on the rope proves the opposite... All traces lead to the clinic where Zoya's adopted son was once examined...