W.P.C. Martella visits a friend of hers, Alison Page, who has been badly beaten up. Alison is on the game, and her attacker was a client. D.S. Roach arrests the man, but he is a diplomat and the Home Office demands his release. D.I. Burnside tells Roach to warn Alison's father, George Page, not to do anything stupid, but when the diplomat is beaten up, it is clear Roach did nothing to stop him. P.C. Stamp and P.C. Haynes investigate when a bookie claims his door has been glued shut. His disgruntled clients claim he hasn't paid their winnings, but Stamp convinces them to go double or quits. The relief bets on the same dog, and it wins the race. (thetvdb.com)