When Jessica (DeWanda Wise) returns with her family to her childhood home, Alice (Pyper Braun), her youngest stepdaughter, begins to develop a strange attachment to Chauncey, the stuffed bear she finds in the basement. At first, Alice and Chauncey play seemingly fun games that, little by little, become more sinister and dangerous. As Alice’s behavior becomes more disturbing, Jessica decides to intervene, but when she does she realizes that Chauncey is much more than a harmless teddy bear.