Hardcore

A person in a white lab coat adjusts a mechanical device on a patient's leg in a clinical room, then stands and looks toward the camera as the patient lies on a bed; the scene cuts to a first-person view of hands holding a shotgun, which is then raised and pointed forward in a hallway with another person in military attire, followed by a shot of a hand holding a metal pipe in a narrow room, and finally a dark, blurry image of a person lying on the floor in a dimly lit corridor.