In Hag, Trent Marakakis and his friends Jordy and Smalls venture into a forgotten part of the city, determined to take revenge on the legendary Hag they believe cursed Trent, leaving him mutilated. Fueled by rage and a thirst for answers, the boys confront the ancient figure, but the encounter spirals into a nightmare of unimaginable horror. The Hag, far from being defenseless, unleashes a brutal and supernatural retaliation, leaving Jordy dead and Smalls trapped in a desperate fight for survival. As the night darkens, Trent's sanity unravels, consumed by the very curse he sought to destroy. Meanwhile, detectives Ken Walsh and Luca Marchetti are drawn into the aftermath of the boys' actions, discovering a series of grisly murders connected to ancient symbols and rituals. As they dig deeper, they find themselves confronting an evil far older and more malevolent than they could have imagined. In a city haunted by dark forces, Hag is a chilling tale of vengeance, madness, and the terrifying power of belief, where the boundaries between myth and reality dissolve, leaving no one untouched by its curse.