Tim,anamateurfilmmaker,returnshometofilmhisbrotherSean'sfuneralafterhisapparentsuicide.Butinthedaysthatfollow,TimdiscoversSean'sobsessionwithanInterneturbanlegendthatdoesnotexistaboutasecretgovernmentmindcontrolexperimentgonehorrificallywrong,ProjectMKHEXE.