▁the ▁film ▁was ▁re - ed ited ▁and ▁re - sub m itted ▁to ▁the ▁board ▁for ▁a ▁" age ▁ 1 5 ▁rating ", ▁with ▁no ▁change ▁in ▁its ▁release ▁schedule . ▁The ▁film ▁eventually ▁was ▁released ▁under ▁a ▁" age ▁ 1 5 ▁rating ", ▁after ▁approximately ▁ 2 ▁minutes ' ▁worth ▁of ▁content ▁were ▁sh aved ▁off ▁from ▁the ▁original ▁cut . ▁ ▁The ▁film ▁was ▁selected ▁as ▁the ▁opening ▁film ▁of ▁the ▁ 3 rd ▁London ▁East ▁Asia ▁Film ▁Festival , ▁held ▁from ▁October ▁ 2 5 ▁to ▁November ▁ 4 , ▁ 2 0 1 8 . ▁ ▁Re ception ▁ ▁Crit ical ▁response ▁ ▁The ▁film ▁received ▁positive ▁reviews . ▁Pra ise ▁was ▁given ▁to ▁Kim ' s ▁direct ing , ▁the ▁acting ▁performances , ▁and ▁the ▁intr igu ing ▁plot . ▁ ▁Y oon ▁Min - s ik ▁from ▁The ▁Korea ▁Her ald ▁pra ised ▁the ▁film ▁and ▁wrote , ▁" It ▁is ▁a ▁rare ▁film ▁with ▁strong ▁direct ing ▁and ▁acting ▁that ▁tells ▁a ▁comp elling ▁story ▁with ▁heart , ▁mixed ▁with ▁susp ense . ▁The ▁mystery ▁tant al izing ly ▁te ases ▁view ers ▁as ▁they ▁are ▁su ck ed ▁into ▁the ▁plot . ▁Ju ' s ▁port ray al ▁of ▁a ▁psych op ath ic ▁k iller ▁was ▁surprising ly ▁convin cing ▁and ▁on - point . ▁While ▁his ▁co - star ▁Kim ▁is ▁as ▁brilliant ▁as ▁expected ." ▁ ▁Park ▁Bo - ram ▁from ▁Y on h ap ▁News ▁Agency ▁also ▁gave