Aliens have kidnapped your best friend.
At least that’s what it seems like. The two of you used to do things together all the time. You’d hang out, watch TV, shoot hoops or climb trees. You liked the same things and you knew each other’s secrets.
But now, sometimes, you feel like you barely know her any more. She never wants to do the things you used to do, and everything’s different. It’s almost like your best friend got kidnapped and replaced with someone who just looks like her.