First broadcast 9th May 1974.
The media carries the news: Murder at Maison Igor's.' Craven and his team must use their own approach to get a line in an unseen gunman now stalking the London streets intent on further killings.
George Sewell ... Detective Chief Inspector Alan Craven
Patrick Mower ... Detective Chief Inspector Tom Haggerty
Paul Eddington ... Strand
Frederick Jaeger ... Commander Fletcher
Susan Jameson ... Detective Sgt. Mary Holmes
Peter Bowles ... Igor
Janet Key ... Carla
Seretta Wilson ... Milly
Lucy Appleby ... Margaret Cope
Peter Blythe ... Fountain
Robert Tayman ... Chris Correy
Jonathan Blake ... Paul Velasquez
Paul Antrim ... Detective Sgt. Maguire
Gillian Raine ... Woman Chief Inspector Carter
Antony Carrick ... Doctor (as Anthony Carrick)
Tim Wylton ... Hotel Porter
Vicki Hodge ... Angelina Peto
