Okay, we get it. SPOILERS
Eve doesn't exist. You don't have to give us a hint every five minutes.
It's a 'twist' that detracts from the story. It would have been a better movie if there had in fact been two women and they actually helped one-another rather than Eve just enabling Lila. It turns what could be an interesting story into a gimmick-reliant one.
Davis carries the movie well but ultimately this element brought it down.
"I'll book you. I'll book you on something. I'll find something in the book to book you on."