This was a cute game with a wonderful artstyle! I eventually figured out who was lying and who was telling the truth, at least with the two masked girls. The girl on the left would lie then tell the truth and the girl on the right would just lie.
SPOILERS that meant the clown and spider did nothing, only thing that mattered was the fire.
The part with Mark was a bit weird. He didn't seem to lie about anything, but his fears didn't help progress the plot at all. I tried covering myself in paint because he said she was worried when the kid was bleeding but that didn't work.
The ending was a bit random though. I thought it was going to be a bit cruel, like I'd put the rubber spiders on the stairs and something sharp at the bottom. But I guess when Ms Wilson sees a red pentagon with candles on the ground she does the stabbing herself...
It was fun though!