The Worst of Evil (Season 1)

The Worst of Evil (최악의 악, 2023) is a South Korean crime series available to watch online on iFILM. Set in 1990s Gangnam, the show follows a detective (Ji Chang-wook) who goes deep undercover inside a criminal network running drugs across Korea, China and Japan — with his wife, a narcotics officer, as the contact who gets him through the door.

The further in he goes, the harder it becomes to separate the cover from the man underneath it. Wi Ha-jun plays the syndicate's head: measured, intelligent, and genuinely hard to read as either villain or victim. Im Se-mi anchors the middle as a woman who is simultaneously the operation's greatest asset and its most exposed part.

Directors Han Dong-wook and Park Geun-buem shoot 1990s Seoul without any warmth for the era — the decade here is dense and pressured. What separates this from a standard undercover thriller is how steadily the cover identity corrodes the real one. Stream every episode of The Worst of Evil on iFILM.