In a beautiful house in the wilds of Cornwall, Daphne du Maurier is on the brink of a breakdown. With her marriage beginning to unravel, she is also increasingly worried about the man who inspired her writing career, whose shadow looms over her childhood: J.M. Barrie, author of Peter Pan. When the line between her own fiction and reality blurs dangerously, Daphne must confront the dark truth that lurks beneath the fantasy of Peter Pan and the secret life that has plagued her since she found fame. Unless she can solve these mysteries and reckon with who she truly is as an artist, her next great work may be lost to history.