Crazed old Gabriel Green comes into possession of the "Trumpet of Doom". He learns to blow it and wakens the dead. An army of zombies starts cleansing the city of all sinners, but then a messianic figure steps in and puts an end to the madness.; Professor Homer Kelsey is an expert in death, because he lures gangsters into his house, locks them up and watches them die slowly. When Slugger and Myrtle come to rob him, Kelsey lets them starve, but perishes of a heart attack while watching.; Wanda marries Hubert for his money and betrays him with the chauffeur. When Hubert finds out, he locks her in an ice-cold vault and lets her freeze to death. Like all the other women who wanted only his money.; A man in a satan mask robs a bank. Inspector Curan and his son Marty investigate. The bank director himself committed the crime while his twin brother posed as him.