In April of 2010, Spanish police reported the discovery of 37 hours of recorded evidence that shed new light on a gruesome murder investigation.
The found footage documents a family of five spending a holiday at their summer house, where brother-and-sister Cristian and July Quintanilla pass the time investigating a terrifying local urban legend.
As their investigation intensifies strange occurrences in and around the house escalate rapidly, before culminating in unspeakable atrocities.