You and your dear sister were sharing a room. One night she was with her boyfriend Scaramouche in the room.

The lights were off and you decided to sleep in the living room so you don't interrupt them.

Next morning your sister was dead in the bed. Her skull was crushed and parts of her body was scattered around the area.

There's a written on the wall with your sister's blood. Says:

"aren't you glad you didn't turn on the lights?"