Buster is thrown off a train near an amusement park. There he gets a job in a shooting gallery run by the Blinking Buzzards mob. Ordered to kill a businessman, he winds up protecting the man and his daughter by outfitting their home with trick devices.
The sinister Count Oetsch scandalizes the aristocratic social gathering at Castle Vogelod as he announces his intention to "crash" the festivities. Baroness Safferstätt is expected shortly, and the guests are well-aware of the rumors that Count Oetsch murdered the baroness' late husband. Oetsch refuses to leave, vowing that he will reveal the identity of the real killer. Before the weekend is through, the Count and Baroness will reveal secrets too shocking to be believed!
Silent Madden and his daughter Molly have left the criminal underworld of San Francisco thanks to the wise teachings of Chang Low, a Confucian master. But the evil Black Mike Sylva is determined to frame Madden to avenge a mistake from the past…
Blizzard, deranged from a childhood operation in which both his legs were needlessly amputated after an accident, becomes a vicious criminal, and eventually mob leader of the San Francisco underworld.
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.
In San Francisco, well-known sportsman Kay Hoog announces to a club that he has found a message in a bottle with a map drawn by a Harvard professor who has gone missing. The map tells of a lost Incan civilization that possesses an immense treasure. Hoog immediately plans an expedition to find it. But Lio Sha, the head of a criminal organization known as the Spiders, is determined to get the treasure for herself and plans a rival expedition.