导演采用平实的艺术策略。影像修复技术让历史更加可感，全彩处理增强细节表现，画面技术提升观看体验。技术使用保持克制，整体色调追求历史真实。整体场面注重精神传达。色彩运用体现严谨态度，声音设计追求内敛风格。LondonerRonnieembarksonajourneytoIndiawhenhismother,Suleka,goesmissingandmysteriouslyendsupinaKolkatahospital.BeforeRonniecanunravelthemysteryofwhatbroughthismotherbacktoherhomeland,Sulekadiesinanapparentcultkilling.Furtherdeathspointtoaseriesofpastmurdersthatstopped28yearsagowhenSulekaleftIndiawithherinfantson.Untilnow.　　AsthedarknesswithinRonniegrowsandthemurdersreachtheirpeak,allroadsleadtothefearedwitchofKolkata'sinsaneasylum.