Four Lives review - truly damning TV about those who are meant to protect and serve

Stephen Merchant and Sheridan Smith star in the BBC's mind-boggling story of the murders by serial killer and rapist Stephen Port ... and the egregious police failures that followed We're getting to the point, surely, where television drama could be named the sixth estate. In the last year alone, we have had Deceit, probing the police ethics around the Rachel Nickell investigation, Frank Cottrell-Boyce's Stephen, about the ongoing mishandling of the Stephen Lawrence case, Jimmy McGovern's look a...