Documentary about gently irreverent comedy duo and Bake Off show-stealers, Mel Giedroyc and Sue Perkins. They have become Britain's favourite female double act, famed for their beautifully pitched, raised-eyebrow humour and cheeky innuendo. But it is the pair's undeniable warmth for one another, which audiences can sense must come from years of genuine friendship, that really sets the twosome apart.