IN THE SAME KEY
Movies like undertone (2026)
undertone runs on anxious dread, claustrophobic tension, and slow burn. We scored our full corpus against that fingerprint: the films below sit closest to the same key.
No Me Sigas
2025
Insidious
2011
Insidious: Chapter 2
2013
The Cellar
2022
Diabolic
2025
Satan's Slaves 2: Communion
2022
The Evil Within
2017
Incantation
2022
Smile
2022
Never Let Go
2024
Shelby Oaks
2025
Life of Belle
2024
Hangman
2015
They
2002
Lights Out
2016
Delivery: The Beast Within
2013
Sinister 2
2015
The Rule of Jenny Pen
2025
Unsane
2018
Our Evil
2017
The Grudge
2019
Sinister
2012
Ju-on: The Curse
2000
Mercy Black
2019