The film follows a group of climbers as they embark on the formidable challenge of conquering the Forbidden Wall, a perilous climb that has remained off-limits for years. What initially begins as an audacious expedition swiftly transforms into a harrowing battle for survival against a malevolent force that toys with their minds and tests their resilience.

Hannah has a past life. A past trauma. And a terrible fear of heights. Now, one late-night call brings her back to where it all began.