So, we all know that death is a part of life, you can't have one without the other. Eventually, we all die, but this movie capitalizes on our need to be able to cheat death to have just one more day, one more hug, one more conversation, one more anything really. And it plays on our fear of not getting that one more that sets us up for a sequel where we still will be wondering who is next and who doesn't get one more.