Two cops are shot dead in cold blood, the killer is on the loose, and a woman lies dying in the hospital of diphtheria. Two completely unrelated cases, but nothing is as it seems in KILLER BY NIGHT. As the highly contagious diphtheria begins claiming more victims, Dr. Larry Ross (Robert Wagner) races to find its source to prevent an outbreak. More concerned with the dead police officers, Captain George Benson (Greg Morris) reluctantly c
