Nightwalker of the Wards
- Episode aired Feb 21, 1979
![The Great Detective (1979)](https://m.media-amazon.com/images/M/MV5BYzhlZDA5NWItMTMyNi00OWQ1LTllNmQtZTkyMjQzZjQ2NDE0XkEyXkFqcGdeQXVyMjA5Nzc2Mzc@._V1_QL75_UY281_CR93,0,190,281_.jpg)
Why are so many patients in the charity ward dying unexpectedly? Dr. Chisholm calls his friend to investigate.Why are so many patients in the charity ward dying unexpectedly? Dr. Chisholm calls his friend to investigate.Why are so many patients in the charity ward dying unexpectedly? Dr. Chisholm calls his friend to investigate.