Her breakthrough came with Jamaica Inn (1936), a tale of smugglers on the Cornish coast, followed by Frenchman's Creek (1941), a romantic adventure of piracy and forbidden love. Her masterpiece, Rebecca (1938), a gothic psychological thriller of love, jealousy, and secrets set at the mysterious Manderley estate, became a worldwide bestseller and was adapted into an Academy Award–winning film by Alfred Hitchcock. She also wrote My Cousin Rachel (1951), The Scapegoat (1957), and short stories such as "The Birds" and "Don't Look Now," both of which inspired famous film adaptations.
Du Maurier was appointed Dame Commander of the Order of the British Empire in 1969. Her masterful blend of gothic atmosphere, suspense, and psychological depth ensures her enduring popularity among readers worldwide.