They're Inside (2019)

Plot

Two sisters retreat to a remote cabin, hoping to create a captivating film together. However, their ambitious project unearths buried family secrets that threaten to unravel their bond. Complicating matters, a group of masked strangers appears, intent on capturing their own sinister vision on camera. As tensions rise and the line between reality and the film blurs, the sisters must confront both their past and the chilling presence of their intruders. What begins as a creative endeavor spirals into a fight for survival, revealing the darker sides of creativity and family ties.