The Endless (2017) – IMDb

The Endless: Directed by Justin Benson, Aaron Moorhead. With Aaron Moorhead, Justin Benson, Callie Hernandez, Tate Ellington. As kids, they escaped a UFO death cult. Now, two adult brothers seek answers after an old videotape surfaces and brings them back to where they began.

via IMDb: https://www.imdb.com/title/tt3986820/