AllMovie

Several deaths have occurred at Valleyview Sanitarium--which in and of itself is not unusual, in that most of the patients are very old and very ill. Even Quincy (Jack Klugman) is persuaded that the recent, slightly mysterious death of an elderly man was simply a coronary rather than foul play. But when a much-younger patient dies under similar circumstances, Quincy changes his mind and launches an investigation--and in the process confronts a self-styled "Angel of Mercy" who is practicing wholesale euthanasia.