Psych Season 8 Episode 9

Gus has been suffering from terrifying nightmares, so he goes to dream therapy to help alleviate the problem. But Gus' nightmares start to feel like reality when he and Shawn work to solve an unlikely case for the SBPD. Throughout the case, Gus dreams about battling zombies and other classic horror story characters--all while trying to cope with the many changes the future is bringing.