SINÉAD KEENAN, CAOILFHIONN DUNNE and ROÍSÍN GALLAGHER on piecing together the past in a dangerous quest

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For more than four decades, she has been one of Britain’s most beloved comic voices. From the outrageous, anything-goes sketches of French and Saunders to the warm-hearted Geraldine Granger in The Vic

Laura Dave was still writing the sequel to her bestselling novel while the TV adaptation was being made. But who was the fraudulent CEO that inspired the story?

Secret Genius Sunday 1 February and Monday 2 ...

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