When guardian angel Seth (Nicolas Cage) -- who invisibly watches over the citizens of Los Angeles -- becomes captivated by Maggie (Meg Ryan), a strong-willed heart surgeon, he ponders trading in his pure, otherworldly existence for a mortal life with his beloved. The couple embarks on a tender but forbidden romance spanning heaven and Earth in this fantasy based on German director Wim Wenders's 1987 film, Wings of Desire.