Agroupof10truecrimeobsessivesareinvitedtotheopeningweekendofthenewlyrenovatedColdRiverMotel,thesiteofa30-year-oldunsolvedsatanicmassmurder.Historyrepeatsitselfwhentheguestsgetstrandedandstartgettingknockedoffonebyoneduringamurderspreethatgrowsexponentiallymoregruesomethantheoriginalwitheachkill.