The Walk-In ITV, Monday, 9pm

Jeff Pope, the acclaimed screenwriter whose CV boasts such titles as Philomena, Stan & Ollie and See No Evil:The Moors Murders, tackles another real-life story with the brilliant Stephen Graham as reformed Neo-Nazi Matthew Collins who now spends his time working against the organisations he once embraced. It reveals the part played by Collins in foiling a plot to murder an MP, orchestrated by a banned far-right group.