Attorney Wayne Fletcher and his secretary are having an affair, so when Wayne's wife is found smothered to death, he becomes the prime suspect. As the police investigate the murder, a psychic with questionable motives tries to contact the deceased woman. Soon, Wayne begins seeing visions of his dead wife, and other people involved with the case begin to be killed, one by one.
A group of archaeologists asks Tarzan to help them find an ancient city in a hidden valley of women. He refuses, but Boy is tricked into doing the job. The queen of the women asks Tarzan to help them.
Lou Costello plays a country bumpkin vacuum-cleaner salesman, working for the company run by the crooked Bud Abbott. To try to keep him under his thumb, Abbott convinces Costello that he's a crackerjack salesman. This comedy is somewhat like "The Time of Their Lives," in that Abbott and Costello don't have much screen time together and there are very few vaudeville bits woven into the plot.