The Man Who Was Thursday follows a group of men who infiltrate a mysterious anarchist organization, only to discover that nothing is what it seems. As secrets are revealed and allegiances shift, the story evolves from a tale of espionage into a surreal journey exploring faith, identity, and the nature of good and evil. Blending mystery, philosophy, and dark humor, the film challenges both its characters and audience to question reality as they pursue the enigmatic figure known only as Thursday.