Foryears,detectiveJae-hwanhasbeenobsessedwithcatchingJin-hyuk,theserialkillerresponsibleforthedeathofhispartnerandbrother-in-law,evenifthepathtorevengemeansskippingafewrules.But,whenthemuch-delayedencounterfinallycomes,thingsdon’tgoatallasexpected—afterachaseandamuddledaccidentandhavingbeenmissingforamonth,Jae-hwanwakesuphandcuffedtoahospitalbed,onlytodiscoverthathe’strappedinJin-hyuk’sbodyandthat,inturn,thekilleristakinghisplacealongsidehisfamily.Butthisisonlythestartingpointtoasinuous,extremenarrativefilledwithsurprisingtwistsandtingedtheredofbloodandneonlights.Inhisbrutaldebut,KimJae-hoonappropriatesthebodyswitchtropeinordertogiveshapetoafeastforgenrefilmlovers.
