Forbidden

It follows four friends who travel from Bangkok to a remote village in the mountains for the funeral of the estranged father of one of the group members.
There they unleash a curse that had been long held at bay by the villagers and discover multiple layers of cover-up. While everyone becomes a suspect in the mystery, they discover that the woods hold a still nastier surprise — the whole group is being hunted.
(Source: Variety.com)