Anyone noticed how in the 7th interview, when Eve describes what happened when she saw Simon's body and Hannah covered in blood, that she is nervously playing with her wedding ring... that she doesn't wear that day? Eve wasn't married, never had been, she shouldn't be used to wearing a wedding ring and theoretically shouldn't develop the habit of playing with it. And yet she was doing that, even though there was no ring on her finger.
https://youtu.be/PmlBt9zp8wY?t=36m35s
#TeamSplitPersonality
I'm still not convinced for the whole twin theory. Sure, there are few hard, physical, evidences (bruise and the tattoo being the strongest ones), but if we assume that this is true, there are so many plot holes in the story.
- How could the midwife took away Eve without anyone noticing it? Sure, she told the parents that Eve was stillborn, but weren't parents curious what happened to the body, didn't they want to bury their dead daughter?
- How could 8 years old girls come out with that kind of plot and succeed? Teenagers - maybe, although that still sounds more like a fairy tale, but not 8-year-old girls. And willingly pulling own teeth and do matching damages? Nope, I don't believe that...
- ...especially since even as adult women they can't do this right. Hannah had a bruise, Eve didn't (even though it had been a week or so since Eve/Simon - whoever gave her the bruise - hit her) and when asked she even mistook on which side the bruise was supposed to be. Hannah also forgot about the tattoo, even though she decided to wear short sleeves during one of the interviews. If you make such huge and basic mistakes in your adulthood, when you're trying to convince the police that there's only Hannah, how could you ever succeed in deceiving your parents and everyone around you when you're a kid?
- Apparently Eve moved out from the attic six months after Hannah and Simon moved in to their parents house (because Hannah forbidden Eve to "pretend to be her" around Simon). Since then she had supposedly lived on her own. How could someone who legally doesn't exist, and who spent half or more of her life living in the attic, live on her own for almost 10 years without anyone noticing anything weird? Eve also said that when Hannah married Simon she started wearing a blonde wig when she was going out "in case anyone recognized me" - wouldn't simply dying her hair be easier and more convenient? At that point she supposedly stopped caring about the doppelganger look (she got a tattoo on her arm after all).
- Simon met Eve at the pub. Simon started cheating his wife with her for no real reason (nothing in Hannah's or Eve's testimony indicated that they had a marriage crisis or something) and for no real reason decided to bring her home and fuck her on his and his wife's bed. Why would any sane man - especially so nice, who always tries to "smooth things over", as Hannah described him - do such a cruel and reckless thing?
- The evening he had an argument with his wife, Simon went to pub and then, an hour or two later, returned home. However, instead of Hannah he found Eve there. Earlier in the interview Hannah stated that "the door locks if it swings to" so we have two possibilities: Hannah let Eve in (after learning that she's pregnant with Simon? c'mon!) and then left, or Eve let herself in (how?). Anyway, would a sane person not be surprised by her presence there and decided that it's a good time to give his lover - who he just learned is his wife's secret twin sister - a present?
- Eve said that after she and Hannah had a fight Hannah "put on [Eve's] wig and some of [Eve's] clothes". Where did Hannah get Eve's clothes? The sister hadn't been living with them for years now and she sure didn't dropped them like she dropped the wig during the fight.