Synopsis: A mysterious new crook known as The Monk has hypnotized Bruce Wayne’s fiancee, Julie Madison. Batman is able to shake her out of her trance and return her safely to her home, although she questions how Batman knows where she lives. As Bruce Wayne, he convinces Julie to see a doctor, who convinces her to take an ocean cruise to Paris as a bit of a get-away. Batman follows Julie in the Bat-Plane and discovers that The Monk is also on the ship. Batman is able to track down Julie in Paris, finding that she is captive in The Monk’s hideout. Batman uses his new Batarangs to get himself out of trouble on several occasions, escaping a snake-pit trap and avoiding two giant apes. Eventually, Batman is able to chase after Julie and save her from her kidnappers. Batman then pursues The Monk to Hungary.