People are dying at a luxury retirement community . . . and not from natural causes. Ruth Mosby is the VP of operations at Serenity Acres, where the privileged elite go to die. For a hefty fee, wealthy retirees can live the good life in this posh Santa Barbara community—even after they outlive their money. Ruth thinks this is a fine arrangement, but the savvy new boss has a new rule: if you can’t pay, you can’t stay. Ruth is deeply disturbed when destitute residents start dying at an alarming rate, as if on cue. Even more troubling, a macabre note accompanies each departed guest. Surviving guests whisper about an “Angel” who assists with suicides. Ruth has another word for it: murder. Ruth enlists her neighbor, an ex-detective named Zach, to discover the Angel’s secret identity. However, the two have a painful history, and Ruth has dark secrets all her own. To solve the mystery, Ruth must descend from her golden tower—but can she bear the consequences of revealing her own sinister truths?