A British Pakistani rapper is on the cusp of his first world tour, but is struck down by an illness that threatens to derail his big break.

After marrying a successful Parisian writer known commonly as "Willy" (Dominic West), Sidonie-Gabrielle Colette (Keira Knightley) is transplanted from her childhood home in rural France to the intellectual and artistic splendor of Paris. Soon after, Willy convinces Colette to ghostwrite for him. She pens a semi-autobiographical novel about a witty and brazen country girl named Claudine, sparking a bestseller and a cultural sensation. After its success, Colette and Willy become the talk of Paris...