Inspired by one of the greatest urban legends ever, the screenplay by Susan Chan Suk-Yin is well constructed and gives talented director Law Chi-Leung many opportunities to thrill the viewer. This movie is genuinely creepy and strangely voyeuristic.

Director Law trains his camera eye on the ladies shoes to help establish character. Action direction by Stephen Tung Wai works seamlessly to blend fright elements and police action scenes to heighten overall effect.

Two terrific performances by Angelica Lee Sin-Je and Karena Lam Ka-Yan make Koma an exceptionally compelling and entertaining cinematic experience. Supporting player Raymond Wong Ho-Yin supplies yet another deliciously bizarre performance that will put a smile on the face of any horror genre enthusiast.