A week is never complete without the hit American procedural TV series "Elementary" serving up all its viewers with episodes that are full of tension and excitement. Just last Sunday, everyone was thrilled to witness the case handled by Sherlock (Jonny Lee Miller) and Joan (Lucy Liu) as they try to solve it within three days in order to prevent an acquaintance from going back to jail.

This week, a new case is in and it is going to be a rather hard one. Episode ten of the series' fifth season is titled "Pick Your Poison" and the synopsis, via Spoilers Guide, circles around Sherlock's partner as she is being investigated by the DEA for writing illegal drug prescriptions. However, Joan is clearly not the one who's using her medical license to do those actions.

It is now up to her and Sherlock to discover who the culprit is. Judging from the synopsis itself, it is going to be a hard one for the duo as the two do not have any idea at all as to who the person and what their motives are for doing such action. In the promo video released for the upcoming episode, not only will Joan be facing of such accusations but she will also be on the receiving end of a murder crime after getting her name involved in a death of an unknown woman.

In an article released by CarterMatt, she could go to prison if they can't solve the case in time. The question now is, who is the dead woman and Watson's name dragged into her case? The answers to these questions are still yet to be known. So tune in to CBS as "Elementary" season five, episode 10 airs on Sunday, December 18.