Tess and Sunny pursue a killer who uses an untraceable ghostgun to take down powerful victims with no discernableconnection to each other. As the threat of a spree killer loomsover Metro PD, Leo asks for Tess's support to investigate theanonymity of digital worlds where dark alliances and onlinefantasies have real life consequences. With Matt's help, Tessand Sunny work against the clock to dissect perfect alibis andexpose the killer before another life is taken. Meanwhile,Sunny gets carried away in her healing journey.