Return ignores the previous films, so Angela never had a sex change, so she should still be a man, yet during The Reveal and The Stinger, she is obviously female, and no explanation is given as to why.
The filmmakers apparently once said that the killer isn't Peter, it's the real Angela.
That just makes you scratch your head harder!
Indeed it does, since the real Angela wouldn't go after bullying campers. She'd go after, say, people one boating trips. Y'know, sicne that's what killed her.