Mythical Creature in Filipino Mythology, similar to the Western version of a vampire with some traits of her own...
http://en.wikipedia.org/wiki/Manananggal
A mananangal is a mythical creature in Filipino folklore that is believed to be a vampire-like being capable of separating its upper body from its lower half to fly at night and feed on the blood of humans and animals. The lower half of the mananangal is said to remain hidden in a secluded location while it is out hunting.