On a blustery November day in London, Gavin catches a bus from Waterloo Station to his office. He makes this journey five days a week, year after year, alone. Or so he thinks.

He does not know that his guardian angel accompanies him each day of his life, watching over him—loving him as all guardians must. His guardian’s feelings, however, fall into baser depths. As all guardians know, it is taboo to feel carnal love for a human ward. Such a relationship would not be viable—or healthy. Gavin’s guardian knows this. Lives and breathes this. And yet, to lift Gavin from depression, he is willing to attempt the impossible: to manifest as a human for Gavin and finally meet the love of his immortal life face-to-face.