A twisted criminal's gruesome videos drive a group of amateur online sleuths to launch a risky manhunt that pulls them into a dark underworld.
There won't be a season 2, the show has ended.
A group of online justice seekers track down a guy who posted a video of him killing kittens.
After a harrowing home invasion and kidnapping in 2015, a couple is accused of staging the ordeal when the woman reappears, haunting the couple with a new series of tortures.