
Impossible Monsters
2019 · Movie · 84 min · ★ 3.9 · 45% critics
A psychology professor launches a study with three people experiencing sleep paralysis. As the sessions deepen, the boundary between waking life and nightmares starts to blur, pulling everyone into a tense spiral where perception can’t be trusted and the fallout turns increasingly violent.
Where to watch
Watch free on Tubi — also streaming on Amazon Prime Video and MGM+.
1 hour to watch.
Streaming availability and prices may be inaccurate or change — verify with the provider before subscribing.
unSUB's subscription recommendations are informational only, not financial advice.
More value for your money
Similar titles, ranked by watch-hours per subscription dollar.
Details
- Years
- 2019
- Release date
- 2019-03-09
- Language
- English
- Runtime
- 84 min
- Max quality
- HD
- Critic score
- 45/100
- TMDB rating
- 3.9/10 (21 votes)
About
You’ll likely enjoy this if you like moody, dream-vs-reality thrillers and don’t mind a slower, more internal focus, similar in vibe to The Drowning; Not for you if you want clear answers, big scares, or consistently strong acting.
Pros: unique dream-focused premise; unsettling mood; strong atmosphere | Cons: uneven pacing; muddy story; underwhelming payoff
Themes
- nightmare
- murder
- dream interpretation
Cast & crew

Santino Fontana
as Rich

Laila Robins
as Dean Gaslow

Dennis Boutsikaris
as Steven

Geoffrey Owens
as Det. Jacobs

Natalie Knepp
as Leigh

Devika Bhise
as Jo

Lyanka Gryu
as Shayna

Chris Henry Coffey
as Charlie

Mercer Boffey
as Costello

Rajeev Varma
as Jeff
Directed by Nathan Catucci