The short itself is set in a world, post-zombie apocalypse, where the main outbreak has been isolated and civilization is back in order. But there are still occasional small outbreaks. The short follows a coroner (the job has changed drastically since the outbreak) to an infection where he must determine the strain and virility of the infection. And it's ultimately up to him to pronounce the victims dead... or help them get there.
Honestly, I've seen feature-length films that were a lot less engrossing than this short. Maybe the production team will get funding for a full-length film someday. It's a cool premise.
Definitely worth a 20 min watch. It's not a zombie horror gore-fest; just a tense, drama-filled story set around an isolated zombie infection.