Liverpool Sound and Vision rating * * *

Cast: Sandra Oh, Jodie Comer, Fiona Shaw, Kim Bodnia, Sean Delaney, Kirby Howell-Baptiste, Owen McDonnell, David Haig, Darren Boyd, Ken Nwosu,  Sonia Elliman, David Agranov.

The world of spies and espionage is nothing without its major villain, it is the binding reassurance that the tussle between two equally determined people plays out in front of an audience who always seem to have the appetite for the resource of the cloak and dagger, the thinly veiled appreciation of a war that has enthralled readers and viewers alike for decades.