i keep trying to figure it out but am not getting any where, there is a point where is seems like debbie knows who the girl is, i even thought it was carol/rainbow but i am still in the dark
It was Rainbow with a blonde wig. Debbie, initially, does not know that that is Rainbow. Remember she tells Scott Glenn's character that that is not Lance's sister as if at that point she does not know it is Rainbow but at the same time knows it is not Lance's sister. When the wig comes off she then realizes it is Rainbow.