This will explain it way better than I can:

“After losing contact with Earth, Astronaut LEE MILLER becomes stranded in orbit alone aboard the International Space Station. As time passes and life support systems dwindle, Lee battles to maintain his sanity – and simply stay alive. His world is a claustrophobic and lonely existence, until he makes a strange discovery aboard the ship. Driven by the powerful music of ANGELS & AIRWAVES, “LOVE” explores the fundamental human need for connection and the limitless power of hope… A high-impact visual adventure, that resonates a common truth, that everyone has a story to tell and something even greater to leave behind.” (Apple Trailers)