Pip, 17, is the sort of teenager who has never given her parents cause to worry. She doesn’t drink, seems physically incapable of telling even the whitest of lies, and spends her spare time ranking Cambridge colleges based on their acceptance rates and famous alumni. In fact, it’s only the prospect of gaining some extra Ucas points that drags her into the messy business of investigating a killing in A Good Girl’s Guide to Murder, the BBC’s likeable, absorbing drama based on Holly Jackson’s bestselling young adult novel.
