Softly, Softly centred on the work of regional
police crime squads, plainclothes
CID officers based in the fictional region of Wyvern, supposedly in the
Bristol area of England. It was designed as a vehicle for Detective Chief Inspector Charles Barlow and Detective Inspector John Watt (played by
Stratford Johns and
Frank Windsor, respectively) from the police series
Z-Cars, which had just finished its original run in December 1965 (no new episodes were produced in 1966 but it was revived in a different format the following year). Joining them in the early series was
Robert Keegan as Blackitt, the police station sergeant from
Z-Cars, now retired and acting as a freelance helper. Another
Z-Cars regular,
James Ellis's Bert Lynch, appeared in the 1967 episode "Barlow Was There: Part 3: Mischief". The 1968 episode "Unfinished Business" saw Barlow reunited with his former boss from
Z-Cars Detective Chief Superintendent Robins (
John Phillips). The first two series continued the trend set by producer
David Rose with
Z-Cars and transmitted the majority of episodes live. This was one of the last long-running British TV series to do this. From series three onwards all episodes were recorded. ==Theme music==