Films: Embryo (1976)
Location: Civilized area
Height/Weight: That of an average human.
Summary: No one wants to age faster than they already do. Oh sure, its instigation could save a life at the moment, but there will be consequences, according to this science.
History: Paul Holliston thought he had discovered the key to preserving life after he saved a Doberman that wasn't even born yet. He had figured out a way to speed up the ageing process so that you can have an adult in less than two months. Sounds great, until you realize that said Doberman went berserk behind everyone's backs, and the new human example, Victoria Spencer, needs the nutrients of fetuses in order to prevent rapid ageing.
Notable Kills: Almost all of her kills have something to do with a fetus, and not once can she get any of their nutrients.
Final Fate: Victoria, now at an elderly age, manages to get away with copious murder, and then realizes that she has a baby of her own coming along the way. Then again, how can she take the baby's nutrients without killing herself?
Weakness: Without fetus nutrients/methotrexate, she will age rapidly.
Scariness Factor: 1.5-While she's certainly determined to make things go her way, she's still a long way from finding a good number of fetuses to plunder. Honestly, just let time to the job with this one.
Trivia: -The artificial uterus has been a subject of scientific debate, but the farthest anyone has gotten with that idea is making sheep uteruses.
-Methotrexate does exist, but it's not used to prevent rapid ageing. It's a useful agent in chemotherapy, used to prevent multiple types of cancer.