 Paul Lavond was a respected banker in Paris when he was framed for robbery and murder by crooked associates and sent to Devil s Island. Years later, he escapes with a friend, a scientist who was working on a method to reduce humans to a height of mere inches (all for the good of humanity, of course). Lavond however is consumed with hatred for the men who betrayed him, and takes the scientist s methods back to Paris to exact painful revenge.