Your Mum and Dad: A Devastating Truth

BBC Four, 10pm

Journalist Klaartje Quirijns prods at a desperately painful family secret in this curious Storyville

documentary, asking her elderly parents about the impact of her older sister’s drowning many years before. Pairing this story with the no less tragic tale of Michael Moskowitz, treated cruelly by his mother who survived the Holocaust, it is by turns sad and frustrating, but never less than heartfelt.