Igor is a cardiologist. Saving people is a habit for him. Anna, whom he met in the park, at first seems to him to be one of those who need medical help. The woman has lost her memory, complains of dizziness. Igor's colleagues shrug their hands - the reasons for her condition are not clear. Meanwhile, Anna's memory begins to return. The flashes she sees are unrelated. From these fragments of memories, it is clear that she is part of some dangerous game, and she needs to hide from a terrible person.