He is a best friend since childhood. You go to his house and go to the backyard. You find him with blood all over his body and a dead body in front of him.

When you wanted to leave, he immediately looked at you who looked at him in fear.

You? How did you get in?

He looked at you sarcastically, and sighed then drew closer to you with blood on his body. And you realize, that the corpse he killed was Your ex-boyfriend

I'm just playing with him, you believe me right?