"Echo Valley, Colorado, is a place where the natural beauty of a stunning river valley meets a budding hipster urbanity. But when an internet stalker is revealed to be a cold-blooded killer in real life the peaceful community is rocked to its core. It should have been an open-and-shut case: the suicide of Tye Horton, the designer of a cutting-edge video game. But Detective Jo Wyatt is immediately suspicious of Quinn Kirkwood, who reported the death....