Avery Grambs, an ordinary high school student, who unexpectedly inherits a massive fortune from billionaire Tobias Hawthorne, despite never having met him. Avery learns that she is named in Hawthorne's will alongside his grandsons, and she must move into his sprawling mansion to compete with the family for the inheritance. As Avery navigates the elaborate puzzles and challenges set by Hawthorne, she uncovers dark secrets about his past and the true motives behind his eccentric games. Along the way, she forms alliances and rivalries with the Hawthorne heirs, including the enigmatic and charming Jameson Hawthorne.