Eerie and elusive, this unusually subtle thriller offers little in the way of big scares or intricate plotting. Instead, Japanese horror director Kiyoshi Kurosawa opts for unsettling imagery and moody atmospherics. The result is somewhat confounding, but utterly spellbinding. A string of grisly murders have left police detective Takabe (Koji Yakusho) baffled. The crimes seem to be unmotivated, the killers make no attempt to flee, and the killings all appear to be entirely unrelated, save for two puzzling facts: In each case, the killer has carved a deep "X" into the victim's neck and chest, and at least three of the killers have come into contact with a mysterious dr...