After a family tragedy, three generations of the Diets family had to return to their hometown of Winter River.Lydia, tortured by the shadow of Beetlejuice, originally lived in an lingering past.However, when her adolescent daughter Astrid accidentally opens the passage to the afterlife world, Lydia's life is completely in chaos.The past and the present are intertwined, the boundaries between the dead and the living are blurred, and the mother and daughter are forced to face a forgotten dark memory together...