A veteran of World War I, Charles Rainier (Ronald Colman) has lost all memory of his life before the war. Left to wander, Rainier meets a showgirl, Paula (Greer Garson), with whom he falls in love. Rainier and Paula are soon happily married, but when Rainier travels out of town, a car hits him -- erasing the memories of his life with Paula, but restoring those of his life before the war. While he returns to his previous life, Paula tries to find a way to be reunited with her husband.