I love the 1959 film, Attack of the Giant Leeches.

The set up is a classic one.  In the humid bayous, a sweaty and unappealing store owner (Bruno VeSota) discovers that his much younger wife (the great Yvette Vickers) has been cheating on him.  In one scene, he forces his wife and her lover to enter the swamp.  It’s terrifying because the swamp is full of …. GIANT LEECHES!  I’m a Southern girl.  I’ve spent some time in the bayous.  Let me tell you, swamps are creepy enough without the addition of giant leeches.

Full of sultry melodrama and bayou atmosphere, Attack of the Giant Leeches is one of the best of the giant monster films of the 50s.  It’s amazing was radiation can do!