Sister Mei (Chien-lien Wu) has spent her life as a successful assassin, but now she longs for a little normalcy -- and the chance to truly love another person. Yet just as she begins to find happiness, a deadly rival (Sang Woo Han) comes knocking on her door. Patrick Leung directs this blood-soaked action romance whose title refers to the phenomenon that Sister Mei's body temperature is an abnormally chilling 32 degrees.