There's nothing sweet about the revenge in "I Saw the Devil," an uber-violent South Korean import.

There's nothing sweet about the revenge in "I Saw the Devil," an uber-violent South Korean import.

It follows the methodical revenge of a special agent (Lee Byung-hun) as he tracks down the brutal serial killer (Choi Min-sik) who murdered his fiancee.

The film is grotesquely violent - even by the standards of Asian cinema - but remains a well-crafted morality tale, even if it runs a bit long.

"Devil" is not a classic on par with "Oldboy," but genre fans shouldn't miss it on the big screen.