I almost quit watching this movie. (Spoilers)
The first hour to an hour and a half of this movie was a little boring. It's been done before, at least twice. Finally the last half hour provided some unexpected twists.
Detective Reeson was just off the wall ridiculous. Especially her conversation with Molly when Molly approached her to tell what was going on and then changed her mind. It was almost like a Farrelly Brothers scene and didn't fit the movie at all. I'm not sure if this character was meant to be funny, but she was.
Husband Jeff....completely bland character.
Sophie....she was annoying through at least half the movie. Having seen the same kind of movie before, Strangers On A Train and a more recent one, I wouldn't recommend this one unless there's nothing else to watch. The final 30 minutes was the only part that was interesting.