Elena Burmistrova, the wife of the chief physician of the famous hospital in St. Petersburg, Anatoly Burmistrova, planned nothing less than the murder of her own husband. And imagine her amazement when she was informed that Burmistrov died not from the poison that she managed to slip to him, but as a result of an injection of a complex drug! She, fortunately, is innocent, but who and, most importantly, why killed Anatoly, and at such an opportune moment?.. The situation in the hospital is increasingly tense... People, one way or another connected with the head physician, begin to die, they are killed cruelly and mercilessly , one after another...