The series begins with Hannah Hall, a wife and stepmother whose life is turned upside down when her husband, Owen Michaels, suddenly disappears under mysterious circumstances. Before he vanishes, Owen leaves a cryptic message for Hannah: “Protect her,” referring to his teenage daughter, Bailey (Angourie Rice), from a previous marriage.
This mysterious message becomes the catalyst for the suspenseful journey that follows. As Hannah seeks answers about Owen’s disappearance, she is drawn deeper into a web of lies and deceit that forces her to question everything she thought she knew about her husband and their relationship.