Midsomer Murders

When Nick Cheyney - the director of a new film version of The Scarlet Pimpernel - is beheaded by a guillotine on set, there is no shortage of suspects, They include an actor whose career was ruined by Cheyney, a woman who bore his child after a drunken one-night stand, and an embittered extra - when medical evidence shows that Cheyney was drugged with morphine before he died, can Barnaby and Jones find the killer before the case becomes as bloody as the French Revolution?