by Elwyn Jones
[Starring] Stratford Johns as Det Chief Supt Barlow, Frank Windsor as Det-Supt Watt, David Lloyd Meredith as Sgt Evans, Julie Hallam as P/W Det-Con Forest

"Whatsoever things I see or hear concerning the life of men, in my attendance on the sick or even apart therefrom, which ought not to be noised abroad, I will keep silence thereon, counting such things to be as sacred secrets." (Hippocrates)
(Radio Times People: page 4)