“A film noir costume drama! Littered with an array of historical personages: Robespierre, Saint Just, Danton, etc. An undercover agent, Charles D'Aubigny, attempts to foil Robespierre's evil plans. The action hinges on an impersonation and a ‘little black book' in which the names of future acquaintances of Madame Guillotine are recorded. A fine collaboration by Mann and cinematographer John Alton.” --Errol Morris