It is not bad overall the story and they are like illegal immigrants to another country. Many complications no doubt and many of the parts are like shortcuts thus make it confusing. If you watch this movie it is like today's immigrants whp do not have a citizenship have to stay put and make sure there is no problem. In all countries there are many illegal immigrants where these people have nowhere to run to due to many things, they have to run all their lives. This is what this story is about . I am surprised Song Joong Ki was picked to this movie but anyway it is emotional too. Thanks for the movie and the excellent casts chosen