Fans of the USA Network series Psych are invited to help Gus and Shawn catch a killer as part of a new social media game. The hunt for the #HashTagKiller (HTK) unfolds over seven weeks leading up to and beyond the Season 6 premiere on October 12. Created in conjunction with Psych‘s writers and executive producers, the HTK murder mystery — based at HashTagKiller.com — features original videos with the series’ stars and interactive crime scene photos that ask players to pull a Shawn and spot out-of-place items and clues, all in the name of finding the killer. “Psych-Os” can send and receive messages with Shawn and Gus, and earn points to ascend a Leader Board by unlocking bonus games and solving weekly puzzles and challenges. Fans can join in at any time, and even continue on in the event they could become HTK’s latest victim.