I really liked this movie. It's an allegory for the huge topic of grieving the loss of a loved one and dealing with that loss and/or the guilt associated with that loss. I really love the use of science fiction to support the allegory. This to me is similar to the movie Colossal where science fiction is used to explore the dynamics of alcoholism. I love allegories and I love the allegorical use of science fiction to explore these important subjects. I rated this movie a 10, very moving. I guess you have to have experience with literature to appreciate it.