A Deadly Episode

"The Word is Murder", the first book in the Hawthorne series, is being made into a major feature film. The actors have been cast, the script written, and filming has already started in Hastings. But when Hawthorne and Anthony visit the set, they find a far-from-happy family. The director's pretentious, the screenwriter's an eco-warrior, the two stars hate each other, and the producer has run out of money.
And things are about to get much, much worse. In the middle of shooting, the actor playing Hawthorne is stabbed - which leaves the real Hawthorne with no choice. He has to step in and investigate his own murder. Because the killer may not have got the right man. Was it Hawthorne himself who was meant to be the target ?