Create a Horror Setting

If I am going to create a scary setting, I would make something like this: One day, you wake up from your bed, and you hear your friends or parents or family or whoever the person living with you is talking weird language. When you walk out of the street, everyone is talking weird language. Then, you saw a shop that says "*%$X!3+>." You found out that everything that has a rule is not following the rule. the traffic light is playing with it's own light and the car is driving in zigzag without bumping the others. The people is trading vegetables with frog and everyone seems to fathom the weird rule except for yourself. If that happened to me, I would really freaked out, because what scared me the most is things I am familiar with became unfamiliar, and the usual person i would talk with is gone. I might also make a setting like the alien comes and make people I know having  robot face and speaking robot-ish. This would also be scary.