Detective Megan Mallard and her team get a gruesome and unwelcome blast from the past. A brutal killer slithers back into their small and usually welcoming town seven years after the murder of Detective Heather White. Can Megan handle the news that shakes the dynamic of her entire unit to its very core? With a vicious tenacity, she takes on the largest investigation the city has ever seen. Can she lead her unit to a just outcome without becoming his next victim? Will the weight of her past and uncertain future prevent her from persevering? If she fails, she's convinced that both the blood and the blame will be on her. There are no second chances this time.