If you loved the eerie and atmospheric thriller The Grotto (2020), you're in for a treat. This article explores 10 similarly gripping movies and shows that deliver the same mix of suspense, mystery, and chilling settings. Whether you're drawn to underground horrors or psychological tension, these picks will keep you on the edge of your seat.

The Abyss (1989)
Description: A sci-fi thriller about a deep-sea diving team that encounters mysterious and potentially hostile underwater entities, blending suspense with existential themes.
Fact: The film's underwater scenes were groundbreaking for their time, using specially designed tanks and innovative filming techniques.


The Cave (2005)
Description: A thriller about a team of divers who discover a dangerous ecosystem in an unexplored cave system, facing both natural and supernatural threats.
Fact: The movie used a mix of practical effects and CGI to create its underground creatures, blending realism with horror.


The Descent (2005)
Description: A claustrophobic horror film set in an underground cave system, focusing on survival and psychological terror as characters navigate dark, confined spaces.
Fact: The film was shot almost entirely on sets built in a studio to create the cave environment, and the actresses underwent rigorous training to perform their own stunts.


Sanctum (2011)
Description: A survival drama set in an underwater cave system, focusing on the physical and emotional struggles of a trapped expedition team.
Fact: The film was inspired by a real-life cave diving expedition and was executive produced by James Cameron.


The Ruins (2008)
Description: A horror film about a group of tourists who encounter deadly supernatural forces in an isolated archaeological site, blending psychological and body horror.
Fact: The movie is based on a novel of the same name, which was inspired by real-life reports of carnivorous plants.


The Tunnel (2011)
Description: A found-footage horror film set in the abandoned tunnels beneath Sydney, where a news crew investigates mysterious disappearances.
Fact: The film was released under a 'pay what you want' model, allowing viewers to download it for free or contribute financially.


The Hallow (2015)
Description: A folk horror film about a family who moves into a remote forest home, only to encounter malevolent creatures from local folklore in the surrounding woods.
Fact: The film draws heavily from Irish mythology, particularly the legend of the 'Hallow,' or fairy folk.


The Pyramid (2014)
Description: A horror film set in an ancient Egyptian pyramid, where archaeologists uncover deadly secrets and supernatural threats in a confined, labyrinthine structure.
Fact: The movie was originally intended to be a found-footage film but was later reworked into a traditional narrative format.


As Above, So Below (2014)
Description: A found-footage horror film that explores the depths of the Paris catacombs, blending psychological horror with supernatural elements in a confined underground setting.
Fact: The film was shot on location in the actual Paris catacombs, adding to its eerie authenticity.
