Murderers and Red.

A strange being finds itself exploring planet earth and (living) among humans. It does not know what it is, what it wants, why it's there, and especially, what it is meant to do. It watches as tragedy after tragedy unfolds on earth, from the World Wars all the way to modern day. Until one day, it finds a girl who can see it, and it has to learn to live as a human. And soon, with her newly made friend, she finds out the mysteries of life through an all-seeing being.