The following is a brief, official synopsis. For a detailed account of the episode, click here.

October 1940: London is in the grip of The Blitz. Back in Hastings the disappearance of a young boy and a break-in at a local food depot lead Foyle and his team to nearby Brookfield Court - a 'funk hole' or hotel catering for long-term guests in wartime. What they discover there is a viper's nest of cowardice, greed and deceit…

In their efforts to find young Mathew Farley, who has disappeared, Milner and Sam interview a number of 'guests' from London, quietly sitting out the war up at Brookfield Court. They're an unpleasant bunch playing tennis and indulging themselves - seemingly oblivious to the massive war effort going on around them.

Milner's convinced that there's something dubious happening at the house but he can't prove anything. Then, just when Mathew Farley's body is uncovered in the nearby woods, Foyle is suddenly taken off the case and placed under house arrest, accused of sedition and spreading disaffection.

Detective Chief Inspector Collier arrives from London to investigate the charges. Milner soon realises that he may have to risk his own police career if he is to remain loyal to Foyle. Sam also faces divided loyalties when she embarks on a secret romance with Foyle's son, Andrew.

Finally, when a town councillor, Frank Vaudrey, is murdered in the summerhouse at Brookfield Court, Foyle must use all his mental resources to solve this new murder and to prove his own innocence. Surprisingly, the route leads him back to London - where the discovery of a heartbreaking wartime tragedy provides Foyle with all the answers that he needs.