It's a really good story and i feel tenesd from the begining till the end. The plots are very tight, one clue by another clue. The movie also like a detective movie and we follow Bryan to solve this case.
We can also see deep love from father to daughter. But, this situation can happen all the time and not every girl has a father like Bryan. Certainly, women are vulnerable group. So, they need to protect themselves. I think one important point is that don't easily speak to strangers. Please keep a perfect protection to yourself.
Father said"You live in your little circle and has no idea what the out world like." The dark side of our society is definitely exist. Our normal people should keep a distance from it. Like the movie, they are cruel and ruthless. They have people both in blcak and white world. You even can not get a help from the government. And they get involved of it and to be an umbrella.