You Shall Not Sleep(2018)
2018 · Gustavo Hernández · 106 min
In an abandoned psychiatric hospital, a theatre group experiments with insomnia for the preparation of a stage play. With the passage of days without sleep, they reach new thresholds of perception that expose them to the secrets of the place and the energies that inhabit it. When Bianca, a young, promising actress, joins the cast, competing for the lead role, she must survive not only the intensity of the work and her cast mates, but the unknown force that is pulling them towards a tragic outcome.
Horror · Thriller
5.6143 votes
TMDB score
3/5
Intensity
2/5
Gore
3/5
Stays with you
How You Shall Not Sleep scares
Watching this feels like slowly losing your grip on reality along with the characters, as exhaustion blurs the line between what's real and what's imagined. The movie takes its time, building a foggy, disorienting dread rather than throwing scares at you, letting paranoia and sleeplessness do the heavy lifting. It leans hard into headspace horror, with tension coming from confusion, distrust, and creeping unease rather than gore or chases. It's more unsettling than fun, the kind of movie that leaves you a little rattled and unsure what you just watched, rather than one you laugh off afterward.
On The Horror Database's 0–5 scare profile, You Shall Not Sleep rates psychological 5/5, visceral 2/5, gore 2/5, lingering effect 3/5, and overall intensity 3/5.
- Psychological: 5 of 5
- Visceral: 2 of 5
- Gore: 2 of 5
- Lingering: 3 of 5
- Intensity: 3 of 5
Slow burn vs Jump scares: 20 of 100 — leans Slow burn
Supernatural vs Real-world: 55 of 100 — balanced
Fun-scary vs Disturbing: 65 of 100 — leans Disturbing
Intensity over runtime
Shape only — no eventsReveal pacing shapeHide pacing shapeHidden by default — shows where the tension peaks and lets up.
A slow, disorienting slide from unsettling calm into an increasingly frantic, sleep-deprived nightmare that keeps tightening until a heavy final stretch.
Intensity across the runtime, 0 to 100: 1, 1, 2, 2, 2, 3, 3, 3, 4, 4, 5, 4.
How scary is You Shall Not Sleep?
On The Horror Database's 0–5 intensity scale, You Shall Not Sleep rates 3/5 — solidly scary, building its fear through slow-burn dread rather than shocks. The fear is mostly in your head — it unsettles far more than it assaults. Expect it to be moderately gory and genuinely disturbing. Some of it will follow you to bed, but it lets go within a day or so.
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