Trying to remember the name of a movie. The male character was really wimpy and got picked on at work by his boss. The female character was prim and proper, had long straight hair, and wore glasses. They both decide to get makeovers and then they start killing people. He kills his boss. They run over a guy who was rude in restaurant they were in with their SUV, murder their neighbors fiancé who always picked on the main male character and borrowed stuff from him. At the end I think they end up going on vacation. It is a comedy and had to have been made in the last 10 years. I have checked IMDB but have had no luck. I can't remember any of the actors in it.