Everything is different now.
No longer can you step outside and wave a friendly hello to that neighbour you used to know. No longer can you go for a walk without having to constantly look over your shoulder just to make sure nothing’s behind you, following you.
One day you wake up and the world has changed.
You step outside and instead of waving to your neighbour you’re running from them as they try to rip the flesh off your bones with their teeth. Everybody you know all joining the army of the Undead and all you can do is watch. Towns, cities and countries. They’re all losing the battle.
You’re given two choices and two choices only.
Die or leave it all behind.