Murder Most Horrid - Season 3 Episode 2
A Life or Death Operation

Ms. Kate Marshall (Dawn French), a brilliant surgeon, tries to murder the wife of a former patient who died when the woman confronts her with accusations that she was negligent during surgery. Kate runs the woman over with her vehicle... several times. As luck would have it, the woman doesnt die and is brought to St. Theodores as a victim. Kate also has a television show and the case becomes a prime topic on the show, much to Kates dismay.