When I first started watching this movie I thought this will be beyond stupid. About 8 minutes later I knew I was wrong. I imagine an actual zombie apocalypse would be similar to this movie.
Two idiots essentially wake up one morning, and don’t even realise it has started. Maybe on honest mistake. Maybe they were just to dimwitted and oblivious to notice. We may never know.
So after they finally realise whats going on and the 3rd roommate dies, becomes a zombie and dies again. A plan comes to fruition.
And yes that is essentially the story of the movie. Everything between there and the end is simply a roller coaster ride of comedy entertainment intertwined with what is legitimately a very well done story of love and friendship. A classic horror comedy that should not be missed. Best wishes and may the gaming gods bring you glory.