If ever you've screwed up at work and wondered if it means you've had a bad career, if ever you've made a mistake and worried it means you are a bad person, if ever you've disappointed your children and fretted that it means you are a terrible parent, this episode is for you, because it proves that even the best of us have our bad days. Midsomer Murders is a good, long-running show with fine actors and engaging characters and it has delighted millions of people around the world. Yet even it once made a jaw-droppingly horrible episode like this one. So go easy on yourself, because we all deserve a little mercy now and then.