The film is set in Incheon in South Korea. A murder is committed, and the cops search for the killer.
Opening up in monochrome but with occasional flashes of colour, the first action scene is a disorientating strobe-like affair. From there the movie proceeds in color, with many innovative editing techniques, including slow-motion, jump cut, step-printed slow motion, "jump dissolves," still frames, and layering images on top of one another.
