Yea i tried to do so but i could only get it to replay the intro until when u enter the manor for the first time then it would stop until i leave the manor from the right side and it would loop the intro part againI see. Then I think you'll have to edit the variables of your save in an editor such as saveeditonline. Variable 81 and up are related to the Halloween quest, but I have no idea what the values should be. Best to experiment on a copy of your save.