Yeah I noticed that too. Retrospectively before the reveal I thought dewy was fighting with a man but it was that girl. They did try to make it seem like she was almost superhuman. Like how many times she got shot, burned on the stove but then came back running with a knife like chuckie in Childs play 2.They should've revealed ol boy as the first killer during the hospital scene and had him help kill Dewey for the first reveal. Then try to figure out who his accomplice was for the 2nd half.
Cause im still looking at Dewey like if he really got yanked up by her like that
Overall I enjoyed the film..