British Chinese Chris Cullen (Chris Cullen) changed his name to Lynn Fanning (Lynn Fanning) and returned to the UK because he was tired of his previous life and chose to live in London again. Unfortunately, her new home happens to be at 221B Baker Street. So, she "unfortunately" became the cohabitant of a certain arrogant detective and an innocent military doctor. Of course, it also started a journey full of excitement.