An ultraviolent Korean crime film with plenty of swagger and visual brio, but still too generic to really stand out from the pack.

South Korea has produced some jaw-dropping action thrillers in recent times, but this one badly needed a bit more wit to go with the wallop.

Two-thirds into the picture, the switcheroos get so ridiculous one eventually stops caring about any character.

Although there's nothing new, Byun Sung-hyun's script is multi-layered and sharp, and Sol Kyung-gu and Im Si-wan give what might have been standard fare an entertaining boost