《原罪犯》韓國暗黑大師朴贊郁睽違六年，繼《下女誘罪》後再度入圍康城影展主競賽單元，與金像級影后湯唯聯手共創另一試煉人性話題作！一名男子從山頂神秘墮下身亡，刑警海俊（朴海日 飾）奉命調查死者妻子瑞莱（湯唯 飾）。表現得異常冷靜的瑞萊，言談中更透露自己早已預料到丈夫會魂斷山野。在監視瑞萊的同時，海俊漸漸對這嫌疑犯產生了興趣，亦被她大膽的舉動所吸引……面對猜不透的瑞萊，到底海俊是愈來愈走近真相，還是一步一步跌入無盡的深淵？ Kind and polite detective Haejun is entrusted with a case of unnatural death in the mountains. While investigating the case, he meets Seorae, the dead victim's wife, and can't help but both suspect and develop an interest in her.