Diana Mosley had brains, beauty and charm, wealth and social position: she risked everything to follow the dark new creed of fascism when, at twenty-two, she fell in love with Oswald Mosley, the British fascist leader, and committed her life to his ideas. In Germany she became a friend of Hitler and Goebbels; by 1940, she was in a damp cell in Holloway prison.

This first full life has an astonishing cast of characters, and shines a spotlight onto some neglected truths about England - its attitudes and prejudices, its strengths and its hypocrisy.