When a car careens out of control over an embankment, killing a middle-aged man in the driver's seat, Megan learns that all is not well on a pretty suburban cul-de-sac. Looking past the perfect picket fences, she and her team are startled by the lives spinning out of control and the ever-changing suspect roster(艺术本来是弥补人生和自然的缺陷的，一切美的事物，都需要我们自己去发现和经营。)