The novel is a work of historical fiction that focuses on the passionate and tumultuous marriage of the American writer and war correspondent Martha Gellhorn to the legendary author Ernest Hemingway. The story follows Gellhorn’s journey as she travels to Madrid in 1937 to report on the Spanish Civil War, where she meets and falls in love with Hemingway. The narrative explores their life together against the backdrops of the Spanish Civil War, Finland, China, and Cuba, and the conflict Gellhorn faced in maintaining her own identity and career as a serious journalist while in the shadow of her famous husband.