If you loved the dark, psychological thriller 'Into Tartarus' (2017) and are craving more films or shows that deliver a similar mix of suspense, mystery, and eerie atmosphere, you're in the right place. This article explores 10 gripping titles that share themes of psychological depth, unsettling tension, and mind-bending narratives—perfect for fans of the genre.

The Abyss (1989)
Description: A sci-fi thriller set in the depths of the ocean, where a team of divers encounters unknown and potentially hostile forces in an isolated, high-pressure environment.
Fact: The underwater scenes were groundbreaking for their time, using specially designed cameras and sets to create realistic deep-sea conditions.


Event Horizon (1997)
Description: A sci-fi horror film where a rescue crew investigates a derelict spaceship that has returned from a dimension of pure chaos, bringing unspeakable horrors with it.
Fact: The film's production design was heavily influenced by Gothic architecture, giving the spaceship a haunting, otherworldly feel.


The Cave (2005)
Description: A creature-feature horror set in a vast, unexplored cave system, where a team of explorers must survive against unknown predators lurking in the darkness.
Fact: The cave environments were created using a mix of practical sets and CGI to achieve a sense of scale and realism.


The Descent (2005)
Description: A claustrophobic horror film set in an uncharted cave system, featuring intense survival themes and psychological terror as characters face both external and internal threats.
Fact: The actresses underwent rigorous training to perform their own stunts, and the cave sets were built to be as confined and realistic as possible to enhance the sense of dread.


The Ruins (2008)
Description: A survival horror film where characters are trapped in an ancient, vine-covered ruin, facing both psychological and physical horrors as they attempt to escape.
Fact: The film is based on a novel of the same name, which was inspired by real-life reports of aggressive plant behavior in remote locations.


The Descent: Part 2 (2009)
Description: A direct sequel that continues the harrowing survival story in the cave system, with even more intense encounters and psychological torment for the characters.
Fact: The sequel was shot back-to-back with the original film, but released several years later due to studio decisions.


The Tunnel (2011)
Description: A found-footage horror film that follows a news crew investigating a government cover-up in the tunnels beneath Sydney, where they encounter terrifying entities.
Fact: The film was released under a 'pay what you want' model, allowing viewers to download it for free or contribute financially.


The Pyramid (2014)
Description: A found-footage horror film set in an ancient Egyptian pyramid, where explorers encounter supernatural forces and deadly traps as they delve deeper into the structure.
Fact: The pyramid's interior was designed to reflect real archaeological findings, blending history with horror.


As Above, So Below (2014)
Description: Blends psychological horror with supernatural elements in an underground setting, where characters confront their deepest fears and sins while navigating the catacombs beneath Paris.
Fact: The film was shot on location in the actual Paris catacombs, adding an authentic layer of terror to the production.


Catacombs (2007)
Description: A horror-thriller set in the catacombs beneath Paris, where a group of partygoers find themselves hunted by a mysterious killer in the labyrinthine tunnels.
Fact: The film's eerie atmosphere was enhanced by shooting in real underground locations, adding to the sense of isolation and danger.
