(the sun just exploded and now people are saying there are beings called visitors that disguise them devastating as humans to get in people's houses, so your just in your house alone but every so often maybe if your lucky the military will drop by some supplies, 1 day you get a knock on the door, its your neighbor, he doesn't seem like a visitor do you let him in)

he goes to your kitchen abd sits down with a 9 case of beer

Neighbor:"its weird, people are telling me some creatures came from the ground, or maybe the moon, well all I know is if someone knocks to make sure there not a visitor before letting them in so choose carefully, if you let someone in you think is a visitor you can check them for signs, the dont attack right away, but i see you had a pistol so if you do let in a someone you thinks a visitor you can shoot them, but just to be safe look and talk to them through your peephole first, also its a good idea to look out the window every so often, mostly you'll probably see random teens or homeless people but good to be safe"