This film essentially begins about 30 minutes prior to a zombie outbreak with three separate groups of people congregating at different levels of a large apartment complex. The first group consists of some kidnappers who are holding a wealthy man hostage pending a ransom. The second involves a rap musician and his followers who are in the process of having an orgy. The third group comprises several law enforcement members who are about to break down the door of a drug lab. The focus then shifts to the second group where a new drug is being introduced which consists of ingredients used to make bath salts. And not only does death quickly follow those who take it, but they are also quickly transformed into raging zombies who subsequently proceed to wreak havoc upon everybody within the apartment complex-to include the other two groups just mentioned. Now rather than reveal any more I will just say that this film had plenty of action and CGI which might appeal to those interested in these specific qualities. It also featured a number of attractive actresses which included Sharon Hsu (as the "female courier"), Una Lu ("Yi-Yi") and Candy Yuen (as the "female prison leader"). Unfortunately, the CGI was rather second-rate, and the constant action hindered the necessary plot and character development. That being said, while it definitely had some potential, it failed to live up to it and for that reason I have rated it accordingly. Below average.