When Dr. Frankenstein is killed by a monster he created, his daughter and his lab assistant continue his experiments.

A greedy gold smuggler hires a handsome hero to transport a stolen fortune to a new hideout accompanied by the smuggler's sexy girlfriend.

A beautiful American woman infiltrates the home of a novelist and his wife so she can investigate the disappearance of her lover — who was her employers’ previous secretary — and soon finds herself the target of the couple's erotic desires and a murder plot.

Django comes to town to discover that his brother Steve, accused of robbing a bank, has been lynched. Django believes the real culprit is Sartana and challenges him to a duel. Just in time he discovers that the author of the crime is an important local figure and Django and Sartana join forces to punish him.