桂治洪“邪”三部曲之首。民国初年，广州西关陈家家道已中落到，只剩陈秀英（恬妮）、其入赘的丈夫杨振宇（王戎）及服侍秀英的丫环。秀英体弱多病，稍一走动便会连咳不止，振宇是赌徒加酒徒，在外一遇不顺心事，便会对秀英及丫环拳打脚踢，丫环无法再忍，别秀英归家。
Despite qualifying for armed force, Karthik ('Jayam ' Ravi) prefers to be a traffic cop in Ooty as he believes that such a no risky job would help him get enough time to look after his cute little sister Vidhya (Baby Anikha). Karthik also has a short lived one side love story with Renu (Lakshmi Menon), who is a doctor. When a hazardous chemical in the nearby industry gets leaked, a dog consumes it and turns into a zombie. As the dog bites a watchman, he too becomes a zombie and eventually, the virus spreads rapidly across the town. Can Karthik save his sister and the city ?
