프릭스서커스단의 난쟁이 한스는 공중그네를 타는 미녀 클레오파트라를 사랑하게 된다. 거인 헤라클레스와 연인 관계인 클레오파트라는 한스가 막대한 재산을 가지고 있다는 것을 알고, 그와 위장 결혼하여 독살한 계획을 꾸미게 된다.
괴인 서커스단의 비밀팔이 없는 알론조는 서커스단에서 나이프를 던지는 인물로 서커스단장의 딸인 내넌을 사랑한다. 그녀는 어려서부터 자신에게 접근하고 만지려고 했던 남자 때문에 남자의 팔을 두려워 하며, 그 때문에 알론조를 편안하게 대한다. 그러나 알론조는 사실은 두 팔이 있는 인물로 범죄를 저지른 후 말이 없는 것처럼 위장을 한 것이다. 한편 역사(力士) 말라바르는 내넌을 사랑하지만 그의 구애는 번번이 거절당할 뿐이다. 알론조는 내넌의 아버지를 살해하고...
The Devil-DollRespected Parisian banker Paul Lavond is framed for robbery and murder by crooked associates and sent to prison. Years later, he escapes with a friend, a scientist who was working on a method to reduce humans to a height of mere inches (all for the good of humanity, of course). Lavond, however, is consumed with hatred for those who betrayed him, and takes the scientist's methods back to Paris to exact painful revenge.
London After MidnightThe abandoned Balfour House, the owner of which was found dead five years earlier, comes back to life with the arrival of two suspicious sinister-looking tenants. This film was lost in the 1965 MGM vault fire; only a few stills exist.
마크 오브 더 뱀파이어Sir Borotyn, a prominent Prague resident, is discovered murdered in his home, with all indications pointing to a vampire assault. The victim's friend, Baron Otto, and the physician who analyzes the body, are certain that the vampire is the mysterious Count Mora or his daughter. Receiving little help from the law, Professor Zelen, an expert in the occult, is called in to assist with their investigation.
The Thirteenth ChairAlthough his murdered friend was by all accounts a scoundrel, Edward Wales is determined to trap his killer by staging a seance using a famous medium. Many of the 13 seance participants had a reason and a means to kill, and one of them uses the cover of darkness to kill again. When someone close to the medium is suspected she turns detective, in the hope of uncovering the true murderer.