The movie was dumb. Just plain dumb. I came into the movie knowing part of the plot, and it still didn't make it better.
Did Anna have two phones talking to Nick? Where does she keep the extra car and clothes, getting no sleep - does no other character question the validity of what this is trying to be. I did like the scene where 'Zoe' is at the family home, and when the dad knows who it is, he acts differently. That part was done well.
However, It genuinely would've been a better twist to see that Anna had some sort of mental disorder and 'Zoe' never existed. The mother character ruined that and made the plot worse with her existence.
Also how is having Tourette's a reason someone would be involved in assaulting someone and nearly killing them? have the producers ever met someone with Tourettes before?
I watched the entire way through, but my review is that when you get closer to the end: it gets harder to do.