Line of Duty fans think they have spotted another clue to H's identity on the series. Fans of the show are becoming obsessed about the mystery of H from hidden clues on computers screens to hanging paintings on wall - and now the kitchen has become the focus of attention for eagle eyed viewers.
We know the corrupt syndicate known as H is made up of four dodgy criminals, a fact revealed via DI Matthew Cottan (Craig Parkinson), who was The Caddy in series three.Viewers are yet to discover the identity of the fourth member and there have been a few hints so far - or red herrings.Episode one showed DS Arnott played by Martin Compston flashes his car lights four times, which is morse code for the letter 'H'.
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