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 ?天雪继续说：“这四年你就当个清闲的普通学生，好好玩！爱做什么就去做什么，那样比在学生会学到的多多了。学生会就是尔虞我诈，毁人！――这是我哥的经验之谈！学生会就是一个小职场、小社会，不是你想的那么天真！咱们有得天独厚的条件，何必呢？先做自己喜欢的呗！社团你想参加哪个就参加哪个，那些部门就算了！”