This Korean thriller is arrestingly stylised, impeccably directed and occasionally very beautiful, but jeesh, it's nasty stuff. A deaf-mute tries to kidnap a rich man's daughter to pay for his sister's operation. Naturally, it all goes horribly wrong. The torture of a young woman with electrical cables and the blade attack on a family of organ traffickers are especially gruesome, but beyond that, there's a withering examination of urban alienation and loneliness at play.