David Compton leaves his pregnant French girlfriend, Louise Boucher, a dancer at the Moulin Rouge, to fight in the war where he loses his memory. After the war, he builds a new life from scratch and gets married in London. Louise, now a mother, believes him to be dead. She becomes a famous dancer under the name Deloryse, but falls gravely ill. One night, as David is in the audience of her show, he regains his memory. When she discovers that David is married to another woman, Louise entrusts her son to David's new wife and accepts a dancing job at a party, where she dies of exhaustion and sorrow.