Creature From The Haunted Sea
American crook Sparks Moran sees a chance to make a bundle when a Caribbean island has a revolution. He plans to help loyalists (and the national treasury) escape on his boat, then kill the men and blame their deaths on a mythical sea monster. Trouble ensues when the real monster shows up!

The Devil Bat
Evil Doctor, Paul Carruthers, (Bela Lugoshi), feels bitter at being betrayed by his employer when they became rich as a result of a product he devised. He gainst revenge by electrically enlarging and training blood sucking bats to "death dive" his employers' family members.

Vampire Bat
When the villagers of Klineschloss start dying of blood loss, the town fathers suspect a resurgence of vampirism. While Police Inspector Karl Brettschneider, (Melvin Douglas), remains sceptical, scientist Dr. von Niemann (Lionel Atwill) cares for the vampire's victims. Is it vampire bats, some other monster of a mad scientist who needs blood for his experiments?