Alexander Dumas apparently had a fondness for tales involving twins who are apart, and here we have brothers “Mario” and “Lucien” (Douglas Fairbanks Jr.) born joined together. A doctor manages to separate them, but their parents are killed by the sly “Baron Colonna” (Akim Tamiroff), scattering the boys. One brother grows up with privilege, while the other becomes a highwayman, yet both feel an inexplicable connection…