Shizuka Yamauchi, 25, housekeeper. Makiko Mitarai, 46, amateur model and perfect housewife. Though strangers on the outside, the two share a past—one Shizuka feels she needs to set right, to bring her mother justice. But Makiko has secrets of her own, and Shizuka will need to tread carefully if she's to get to the bottom of it all without getting burned.