In a bid to contain the chaos caused by the malevolent doll, Annabelle, renowned demonologists Ed and Lorraine Warren take drastic measures. They carefully transport the possessed doll to their home’s secured artifacts room, sealing it behind protective sacred glass and calling upon a priest to bless the space. However, their efforts to safeguard their family come at a steep price. That night, a wave of terror unfolds as Annabelle stirs the dark spirits lurking within the room, each one eager to claim a new victim. The focus of their malevolence shifts to the Warrens’ ten-year-old daughter, Judy, and her friends, plunging them into a night filled with unimaginable horror. As the night progresses, Judy must confront the sinister forces unleashed by Annabelle and fight to protect herself and those she loves.