Twelve-year-old Bea keeps a running list of things that will not change to feel safe as she navigates life between divorced parents, but when relationships shift and secrets surface she must confront jealousy, confusion, and the fear of losing the people she loves. As plans and loyalties are tested, she slowly learns that family can look different than she imagined and that stability often comes from unexpected sources of love and honesty rather than from things that stay the same.