Weevil (2018)

Black Mountain National Park is shrouded in mystery, notorious for its bizarre history of missing livestock and odd vanishings among locals. Among the most chilling is the unsolved case of the Wahldrov family, who vanished without a trace. Cassian Wahldrov returns to his hometown after his autistic brother, Manny, goes missing. Joined by his sister Mae, he embarks on a desperate search. However, an enigmatic force disrupts their quest, driving a wedge between the siblings and unraveling their bond as they confront the park's eerie secrets.