Papercuts
Why'd the girl already have so many papercuts in the same place Brown was going to cut her? Coincidence?
I immediately thought they'd all been through this before, just having their memories reset each time to see if it plays out differently. That would explain the cuts. But it didn't turn out to be the case.
So my other thought was that they were in on it, working for the company. She does mention she works for them. Maybe Brown does too?