Dives deep into some of history's most sensational cases, and in the first program, the story of the nurse Christina Hansen at Nykøbing Falster Hospital is unfolded. Her patients died strangely during her guards at the hospital, and one day a colleague sounded the alarm. The case of Christina Hansen is about one of the most gruesome attempts to commit serial murder in Denmark, and it is a case that we have never seen before or since here in Denmark.