http://www.amazon.com/Vacancy-Bryan-Coburn-ebook/dp/B00K1FHC0A
After a pandemic virus left Martin as the last remaining employee at a five star resort hotel, he is over protective of his new home, and slightly paranoid about leaving the property for very long. The virus did not turn people into zombies, but still, from watching too many apocalypse movies, he can't help but think about how gangs could form and roam around killing, raping, pillaging, as they made their way through the countryside.
He is alone for month until he spots a car in the distance. The car is coming towards the resort, towards the hotel, towards him.