The mysterious Count Orlok summons a happily married real estate agent to his castle, located up in the Transylvanian mountains, to finalise a terrifying deal.
Francis, a young man, recalls in his memory the horrible experiences he and his fiancée Jane recently went through. Francis and his friend Alan visit The Cabinet of Dr. Caligari, an exhibit where the mysterious doctor shows the somnambulist Cesare, and awakens him for some moments from his death-like sleep.
Ernest Schiller, a wealthy merchant, has the cherished ambition to secure as his son-in-law the Count De Grechy, a member of the nobility. His ambition is about to be realized, for the Count has accepted an urgent invitation to be Schiller's guest. His arrival is hailed with delight by the merchant, who offers the freedom of his home. Bertha, Schiller's daughter, does not experience the same enthusiasm which is manifested by her father. The reason for this is that she has pledged her heart and hand to Franz Rambauld, her sweetheart. The Count's attentions, therefore, are greatly distressing to Bertha. Nevertheless, through her father's insistence, the unfortunate girl is compelled to engage herself to the Count.
Two opposing characters are hidden in the person of the inconspicuous London gentleman Dr. Warren and Janus.
A film crew is shooting a movie about guns and robbers, when real robbers turn up. Having to go home in robbers costume, they are mistakingly accused of a robbery. One of the earliest films portraying bisexual characters.