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?