Superhero Captain America battles the evil forces of the archvillain called The Scarab, who poisons his enemies and steals a secret device capable of destroying buildings by sound vibrations.

After a beautiful but unsophisticated girl is seduced by a worldly piano player and gives up her out-of-wedlock baby, her guilt compels her to kidnap another child.

A high-school girl gets involved with a ring of teenage marijuana smokers and starts down the road to ruin. A reporter poses as a soda jerk to infiltrate the gang of teen dope fiends.

A study of an amoral and sleazy defense lawyer who suddenly tries to "go straight" when he finds out that his tart wife is cheating on him; as well as the similarities he has in life with one of his clients.

Aircraft are being shot down by a large black plane with a big "X" painted on the wing. The chief suspects are invited for the weekend to an old dark mansion.