If you loved The Beast Within, try Lady Terminator
A bridge between a film you've already seen and one most people haven't. Here's what they share, and what the second one does that the first one doesn't.
What they share
Theyboth carry the body horror mood tag, and they sit in Fantasy / Horror / Science Fiction territory. If that's the register that drew you to The Beast Within, the second film will land in a comparable space — through a different lens.
body horror
What Lady Terminator is
Dark Jakarta alleys at dusk, taxi horns blaring, a woman's eyes flash with evil intent. A young student's body is possessed by an ancient queen's spirit, unleashing violent chaos. Classic 80s Indonesian horror.

