Woke Up Dead

What is Woke Up Dead about (plot, summary)
Drex (Jon Heder) is everyone's favorite poindexter. Then he goes and
fulfills every emo goth kid's dream by waking up in a tub full of water,
without a heartbeat, and suspects he may actually be dead. It's not
easy to cope with being a nerd and a zombie. The change actually results
in him getting a job, and a leading role in his roommate's
documentarian film dreams. Not to mention he meets Cassie, a cute med
student who wouldn't give him the time of day when he could breathe, and
a shadowy agency that may just know why he Woke Up Dead.