Shadow of the Missing (2018) streaming VF HD et 4K - oovap

A group of young filmmakers are attending a Film Festival in Wales. They come across an abandoned church, and hear music coming from inside. After some goading and teasing, the entire group decides to return to the church in order to solve the mystery. Complications arise, however, when one by one members of the group start to disappear. Only the footage remains to tell their tale..