The story revolves around a young mother, Ann, who moves to London with her small daughter, Bunny. Excited to start a new life, Ann takes Bunny to kindergarten, but upon returning, she discovers that the girl has vanished without a trace. Ann's anguish deepens when investigators and those around her begin to doubt her sanity. Nobody seems to believe that Bunny truly existed, and they start questioning Ann’s mental stability, suggesting that the girl may have been a creation of her imagination.
As Ann desperately tries to find her daughter, she delves into a labyrinth of secrets and hidden truths in her surroundings. Her search takes her from the mysterious nursery to the dark side of the city, where each encounter seems to reveal more about the nature of her own mind. As the plot unfolds, unexpected twists keep the audience on the edge of their seats, blurring the lines between reality and madness.
With an atmosphere of growing tension, the film explores themes of motherhood, loneliness, and the fragility of the human mind. Ann's struggle is not only to find her daughter but to reclaim her own identity in a world that seems to conspire against her. This psychological thriller becomes a haunting reflection on perception and truth.