Elementary (2012)

S3E7 The Adventure of the Nutmeg Concoction

Sherlock, feeling restless, insists on assisting Joan with her investigation into a woman who vanished five years ago, with only the scent of nutmeg left behind as a clue. At the same time, Joan's relationship with her long-distance boyfriend, Andrew, faces challenges when an old acquaintance resurfaces and seeks her assistance.