She's to die for.

Having recently witnessed the horrific results of a top secret project to bring the dead back to life, a distraught teenager performs the operation on his girlfriend after she's killed in a motorcycle accident.
In Return of the Living Dead III, consciousness is carried by the dead — a plane of “zombie romance apocalypse”. The story fights on E8/E10 of the E0–E14 reality ladder, compressing survival, weaponization, infection, hunger, mortality.
Films fighting at the same level of reality, about the same things.
Other films that change a standing rule of their world — ranked first by those bending it at the same rung.
Lifeforce (1985)alters at E6 · same rung · loose
The Last Days on Mars (2013)alters at E6 · same rung · loose
Shaun of the Dead (2004)alters at E6 · same rung · loose
It Follows (2015)alters at E6 · same rung · loose
Final Destination Bloodlines (2025)alters at E6 · same rung · loose
The Dead Don't Die (2019)alters at E6 · same rung · looseOther films that move a human interior onto the same kind of thing.
Gantz (2010)consciousness in the dead · death‑game arena
Husk (2011)consciousness in the dead · cursed cornfield
The Haunted Mansion (2003)consciousness in the dead · haunted manor
Grave Encounters 2 (2012)consciousness in the dead · haunted asylum
Velvet Buzzsaw (2019)consciousness in the dead · cursed art world
The Return of the Living Dead (1985)consciousness in the dead · zombie outbreakThe same preoccupations carried by a different kind of thing — grief told through the dead, an animal, a machine.
The Ruins (2008)consciousness in monsters · infection, mortality
Truth or Dare (2018)consciousness in monsters · mortality, survival
As the Gods Will (2014)consciousness in objects · mortality, survival
Jumanji: The Next Level (2019)consciousness carried elsewhere · mortality, survival
The Red Turtle (2016)consciousness in animals · mortality, survival
Slither (2006)consciousness in aliens · infection, survival