악을 숭배하는 집단에 의해 혼란에 빠진 도시, 특별한 능력을 가진 어둠의 해결사 ‘거룩한 밤’ 팀 바우(마동석), 샤론(서현), 김군(이다윗)이 악의 무리를 처단하는 오컬트 액션.

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Starring Don Lee as Bau, the leader of a secret team known as Holy Night, that hunts down demon-worshipping cults threatening Seoul. Alongside Sharon (Seohyun), who can detect and exorcise demons, and Kim-kun (David Lee), their tactical support, the team faces a rising evil. When psychiatrist Jung-Won (Kyung Soo-Jin) seeks their help to save her younger sister Eun-Seo (Jung Ji-So) from demonic possession, the mission becomes more dangerous than ever.