Happy Face

The room is pitch black as you open your eyes. An ache in the side of your head throbs, clouding your thoughts. Dim lights start to illuminate a tired room. The floor boards are broken and the wallpaper is peeling. Broken items litter the ground about you. You realize most of the items are broken porcelain dolls and broken glass. You jump as screams sound through the house, followed by deep maniacal laughter. A grave stone of fear grows in your stomach. You get up, trying to find a way out. A heavy oak door is on the left, but it's curtained by darkness, the lights unable to reach the corner. A trap door to your right leads down. A red smiley face with X's for eyes is sloppily panted on the trap door. Where do you go?