▁Ky ung - ho ▁is ▁also ▁kept ▁— ▁the ▁condition ▁that ▁D ong - so o ▁had ▁requested ▁T ae - su k ▁to ▁ful fill ▁in ▁exchange ▁for ▁the ▁testim ony ▁followed ▁by ▁his ▁arrest . ▁While ▁Ky ung - ho ▁is ▁having ▁a ▁show er , ▁D ong - so o ▁clos es ▁the ▁tap ▁and ▁approaches ▁him ▁with ▁a ▁smile ▁and ▁a ▁ro pe ▁in ▁his ▁hands . ▁ ▁Cast ▁Ma ▁D ong - se ok ▁as ▁J ang ▁D ong - so o ▁Kim ▁Mu - ye ol ▁as ▁Jung ▁T ae - su k ▁Kim ▁S ung - ky u ▁as ▁K ang ▁Ky ung - ho ▁( K ) ▁Ch oi ▁Min - ch ul ▁as ▁K won ▁Oh - s ung ▁He o ▁D ong - won ▁as ▁Ch oi ▁Moon - s ik ▁Y oo ▁J ae - my ung ▁as ▁He o ▁Sang - do ▁( special ▁appearance ) ▁ ▁Production ▁ ▁Fil ming ▁Princi pal ▁phot ography ▁began ▁on ▁July ▁ 3 1 , ▁ 2 0 1 8 , ▁and ▁wrapped ▁on ▁November ▁ 1 8 , ▁ 2 0 1 8 . ▁ ▁Release ▁ ▁The ▁Gang ster , ▁The ▁Cop , ▁The ▁Dev il ▁was ▁released ▁in ▁South ▁Korea ▁on ▁May ▁ 1 5 , ▁ 2 0 1 9 . ▁The ▁film ▁will ▁also ▁be ▁shown ▁out ▁of ▁competition ▁in ▁the ▁Mid night ▁Screen ings ▁section ▁at ▁the ▁ 2 0 1 9 ▁C annes ▁Film ▁Festival . ▁