Harold is ensnared by the wiles of Sybil, an adventuress. The boy forgets Helen, his country sweetheart. Sybil's influence over him is so evil that he can no longer apply himself to his work. His employer finally discharges him. When Harold's money is gone, the adventuress throws him over. He becomes a drunkard. Helen, failing to hear from him, comes to the city, where she secures a position. Harold decides to become a hold-up man. To pass away the time before midnight, he goes to a theater where Bert French and Alice Eis are presenting their famous "Vampire Dance." The characters are an artist and a vampire, in the guise of a wood nymph. Harold sees the artist attracted by the beautiful creature and then his struggles as he realizes what the result of the fascination must inevitably be. The victim beats her in his frenzy of fear, but is irresistibly drawn into the coils by the vampire's fiendish wiles.