It's Annie Desmond's sixteenth birthday, and her friends have decided to help her celebrate in style, complete with a brand new tattoo. Before her special night is over, however, Annie and her friends enter into a life-altering pact. When Annie tries to make good on her promise to her friends, she's forced to take a good look at the world that surrounds her.
The story revolves around June and Lurie, who welcome a mysterious houseguest named Beatrice, whose insatiable hunger leads to unsettling dynamics in their home. As they strive to keep her satisfied, her presence becomes increasingly invasive, prompting the couple to confront a terrifying dilemma. The narrative explores themes of obsession, sacrifice, and the consequences of accommodating an unwelcome entity in their lives, ultimately questioning the price of freedom from Beatrice's grasp.