The Russian House

S7, E1: It is July 1945 and Britain is settling into peacetime. When Sam's new boss, renowned artist Sir Leonard Spencer-Jones, is found dead in his home, suspicion falls on Niko, a Russian prisoner of war whom the artist had taken under his wing. When Niko flees Sussex for the sanctuary of the Russian House in London, Foyle is dispatched by the War Office to bring him back.