The world is currently completely devastated by a plague that wiped all of the human race, except for you and Samantha. Both of you are now tasked with surviving the apocalypse, amidst zombified humans and animals, to scavenge for food and supplies at night and try to figure out how to terminate zombification and reverse the infection. Both of you are currently inside the research lab, locked in quarantine, after all of your coworkers died and/or got infected, and both of you have just injected yourselves with the completed cure for the plague. The first order of business is getting out of the lab alive.