At its core this is a story about a very lonely person, one that we all may know, and how she fell through the cracks of life. One character sums it up perfectly: "It's strange really, it's like she never really existed but was just a figment of our imagination. She was a story. Someone that we all just made up; partly because we just let someone disappeared and die. Someone that we all thought we cared about." A few people have mentioned that this documentary is weak because Joyce, and her story, are mundane and not remarkable." They're absolutely correct, but I see this as a strength for the documentary. Joyce, and her "friends", are not remarkable in any way. Instead, they are normal people who lived their life around someone that was almost a ghost.
It's remarkable to watch these people recite, and discover, how little they knew this woman that they considered a friend. And yet these friends, or interviewees, are the best window into Joyce's life. As the title of the film suggests it really is like Joyce only existed in a dream. Her past and future never existed and she was only a shell of a person. I was reminded strongly of the movie Inception while thinking about Joyce. Not to ruin Inception for anyone, but there's a conversation where one character says to another "I can't imagine you with all your complexity, all your perfection and imperfection. You're just a shade..." That's what Joyce was, only a shade of a real person.
If there's a lesson to take from this movie it's that we need to do a better job of keeping in contact with our friends. I don't know what happened in Joyce's life that left her to die alone, but no one should have that fate.