Saming.

While searching for his missing sister in Northern Thailand, a fitness vlogger is introduced to the legend of Saming, a shapeshifting tiger that consumes and replaces its victims. Ignoring warnings from the locals, he ventures into the jungle, believing his sister vanished there. As his trek leads him deeper into the brush, his companions disappear one-by-one, and he finds himself stalked by a mysterious spirit in the form of his sister.