Complete story — includes the ending
Gordon Cushing's wife disappeared in 2010; he was acquitted in a murder trial, but many people still think he is guilty. One day, he receives two severed human ears along with a ransom note. The DNA matches that of Cushing's wife, Sarah. At the ransom exchange, Cushing pursues the suspect and unintentionally kills him. Clues on the suspect's body lead Sherlock and Joan to an AA meeting, where they find Sarah, who is both alive and not earless. Sarah says that the DNA they collected when she disappeared was not hers and belongs to her husband's mistress; however, she died in 2011 in a car accident. Sherlock realizes that Sarah's plastic surgeon husband grew two exact replicas of her ears on her back and then cut them off in an elaborate attempt to collect the ransom from Cushing. Meanwhile, Lestrade is mugged and Joan encourages him to solve his own case in order to lift his spirits and get him to move on with his life. He is successful and accepts a position with the Garda Síochána, the Irish national police.
Sources and content license
Source and revision history · Adapted from Wikipedia contributors, List of Elementary episodes. HTML formatting and reference markers removed. · Content license