Eight very different couples deal with their love lives in various loosely interrelated tales all set during a frantic month before Christmas in London.
Chris, a former tennis pro, takes a job as an instructor and befriends his wealthy young student, Tom. After being introduced to his family, Chris is soon engaged to Tom's sister, Chloe. Despite the professional and financial advantages that this relationship affords him, Chris becomes obsessed with Tom's fiancee, American actress Nola.
Fifty years into the future, the sun is dying, and Earth is threatened by arctic temperatures. A team of astronauts is sent to revive the Sun — but the mission fails. Seven years later, a new team is sent to finish the mission as mankind’s last hope.
