Movie Substrate · Film
Happy Death Day (2017)
★ 6.7 · 6,545 ratings on TMDB
Get up. Live your day. Get killed. Again.
Caught in a bizarre and terrifying time warp, college student Tree finds herself repeatedly reliving the day of her murder, ultimately realizing that she must identify the killer and the reason for her death before her chances of survival run out.
DirectorChristopher Landon
The emergence reading
Happy Death Day keeps every mind human — it fights its subject at zero distance. The story fights on E8 of the E0–E14 reality ladder.
zero-distanceUS
⇄ Parameter shift — the dial this world turnsrigor: loose
E0timethe universe repeats the same 24‑hour period indefinitely, resetting everything each midnight (physics · universal)
Same rung, same subject
Films fighting at the same level of reality, about the same things.
Same subject, different rung
The same preoccupations examined at another scale — one mind versus a nation.
Also bends a rule of reality
Other films that change a standing rule of their world — ranked first by those bending it at the same rung.
Avengers: Endgame (2019)alters at E0 · same rung · loose
Back to the Future (1985)alters at E0 · same rung · loose
The Matrix (1999)alters at E0 · same rung · rigorous
Interstellar (2014)alters at E0 · same rung · rigorous
Doctor Strange (2016)alters at E0 · same rung · rigorous
Edge of Tomorrow (2014)alters at E0 · same rung · rigorousSame people
Shared director or cast.
