An Unnatural Arrangement

"An Unnatural Arrangement" is the sixth episode of season two of Elementary. It first aired on CBS on 31 October, 2013.
== Summary ==
A home intruder, who is after Gregson, is shot by his wife. Sherlock and Joan investigate who could be targeting Gregson. Two more victims, including Gregson's neighbor, are discovered murdered and Sherlock realises the killer went to the wrong house and is not after Gregson. Tying the victims to their service in Afghanistan guarding an archaeological site, Sherlock questions an archaeologist and quickly deduces that she was stealing from her digs and is now killing her accomplices with the help of her ex-husband. In the process of the investigation, Gregson must reveal that he and his wife separated. Meanwhile, Joan is frustrated with Sherlock after he solves a case she was asked to consult on. Sherlock gives her access to his box of unsolved cases.
== Plot ==
== Cast ==
=== Regulars ===
* Jonny Lee Miller – Sherlock Holmes
* Lucy Liu – Joan Watson
* Aidan Quinn – Captain Thomas Gregson
* Jon Michael Hill – Detective Marcus Bell
=== Guest stars ===
* Talia Balsam – Cheryl Gregson
* Sarah Wynter – Beth Roney
* Peter Hermann – Detective Craig Basken
* Ted King – James Monroe
* Armando Riesco – Jacob Esparz
* Kathleen Chalfant – Mrs Clennon
* Christopher Burns – Coordinating Detective
* Danny Rutigliano – Prisoner
== Allusions ==
* The conclusion of this episode makes reference to the Sherlock Holmes story Silver Blaze. In solving the crime, Sherlock remarks on how the archaeologist Beth's dog refrained from barking during the visits from her ex-husband, going so far as to explicitly call the matter "Curious."
== Season Two navigation ==
== References ==
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Category:Elementary: Season 2
Category:Episodes: Elementary