Contamination vs Don't Knock Twice
Contamination has the higher audience score (10/10 against 5.5/10 for Don't Knock Twice). Don't Knock Twice is the shorter watch at 1h 33m compared with 1h 47m. Don't Knock Twice is the older of the two (2017 against 2025). Both are horror movies, so they suit a similar mood.
Contamination
Don't Knock Twice| Contamination | Don't Knock Twice | |
|---|---|---|
| Audience score | ★ 10.0/10 | ★ 5.5/10 |
| Year | 2025 | 2017 |
| Length | 1h 47m | 1h 33m |
| Genres | Action, Horror, Science Fiction | Horror |
| Country | Canada | – |
| Director | David Heacock, Neil Chase | Caradog W. James |
| Main cast | Elizabeth Chamberlain, Neil Chase, Brandon Horth, S-Raj Kumar, Tyler Sabourin | Katee Sackhoff, Lucy Boynton, Jordan Bolger, Nick Moran, Javier Botet |
Synopsis
Contamination
A top secret Alaskan lab goes dark due to an unexplained incident, prompting the military to send a black ops team to recover sensitive data and destroy the lab, only to find their ranks infected with a deadly alien virus.
Don't Knock Twice
A mother desperate to reconnect with her troubled daughter becomes embroiled in the urban legend of a demonic witch.
Where to watch
Where to watch ContaminationWhere to watch Don't Knock Twice
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