January 1, 2010
Callista is a beautiful young woman, and the dweeby Doug is entranced by her physical beauty and her sweet spirit. However, as the date of their wedding draws closer, he notices that she has begun to behave strangely. At first he thinks she's just under the weather, but as the symptoms become more pronounced, he begins to fear that she's caught an STD from cheating on him. The truth is actually far worse. Callista has been possessed by a demon, and now, she is intent on killing nearly everyone she sees, especially those who are friends and family of Doug. Her bridesmaids and her henchmen in this effort, and it is up to Doug, once he finally catches on, to stop her with his groomsmen.