Set in the 1930s, the story follows the 4,000-year-old vampire Saint-Germain as he escapes the Spanish Civil War and finds refuge in the United States. Reuniting with Rowena Saxon in California, he soon realizes that a relentless assassin is on his trail. Saint-Germain must use his wit, charm, and supernatural abilities to evade his pursuer while navigating the complexities of Depression-era America.