Walter Wanger (Jon Hamm) transforms Joan Bennett’s (Zooey Deschanel) acting career by giving her a makeover. Now a raven-haired woman of mystery, Joan does her part during WWII by appearing in more anti-Nazi films than any other major American actress, while also authoring a book aimed at women that combines diet tips with calls for political engagement. Her new look is perfect for a new identity as a film noir femme fatale.