Kate's turning 50, and as if that weren't depressing enough, she's about to become a grandmother-twice. Her investigation of a mysterious death at the Vista View retirement complex opens her eyes to the new realities of aging, some of which send her reeling. What really happened to the wealthy, tennis-playing cougar in Building One? Are residents covering up a sex-for-hire scandal? Will Kate's longtime friend lose her job as Vista View's business manager? Kate makes it her business to discover the truth-or die trying.