Movie availability guide
The Grotto
Four bodies are found at a cave accident and forensics point to the only survivor as the culprit. He denies guilt, accusing his wife of committing the crime. But how is this so? She is one of the deceased.
2020 6.0/10 community score 1h 38m Released
- Horror
Viewing market
Country-level availability
Where to watch in United States
2 platforms currently listed across all viewing options
Data checked 28 Oct 2026, 11:05 UTC
Included with subscription
2Linked platform guideAmazon Prime VideoPlatform guideView details Linked platform guideAmazon Prime Video with AdsRelated brand guideView details
Reader conversation
Community discussion
Share viewing experiences, useful context or corrections. Comments are hosted by Disqus and load only after you choose to open them.