Margaret and her aunt Eleanor are hired as maids on a luxurious ship, but Margaret's life takes an unexpected turn when she encounters her doppelganger-Charlotte Vance, a wealthy and famous author. Astonished by their striking resemblance, Margaret agrees to step into Charlotte's life for just one evening. But when a life-changing offer presents itself, Margaret finds herself at a crossroads, torn between the identity she's created and the woman she truly is. Set in the late 1940s aboard a grand ocean liner, The Doppelganger's Voyage is a story of secrets, identity, and the choices that can alter the course of a life forever.