A Bloody Aria (2006)

A young student and her instructor retreat to a remote location to hone their vocal skills in the open air. Their serene practice takes a dark turn when they encounter a group of local thugs. Initially appearing amiable, the gang soon unveils their menacing nature, transforming the idyllic setting into a nightmare. As tension escalates, the duo must navigate the perilous situation, grappling with the threat posed by the increasingly hostile locals while trying to survive the day.