What do you expect from a film called The Leech Woman? It is by definition one of those sci-fi "B" movies strung together as a support feature that played whilst theatre patrons were still necking, chatting and eating etc.
Plot follows in the tradition of something like The Wasp Woman (1959), that plays on the theme of a woman striving to stay young as the advent of time catches up with her. Cue bonkers science, where here it involves a trek to the jungles of Africa to unearth the secret of eternal youth. Naturally things get very bent out of shape and... read the rest.