Complete story — includes the ending
Sherlock and Joan investigate a missing lab technician who works in the fertility clinic of the hospital where Joan used to work. The woman's skeleton is found stripped and assembled as an educational tool for medical students. Meanwhile, Joan meets with an old friend and finds out that a Detective Cortes has been asking questions about her. It turns out that the victim was in a group marriage with two doctors who reveal that she was dying of pancreatic cancer. It is then revealed that one of her husbands had been deliberately misdiagnosing people because he could create impressive cancer remission rates and raise his profits. She noticed when she was receiving chemotherapy in his clinic and challenged him, so he murdered her. When Joan confronts Cortes, the woman voices a dislike of consultants investigating cops and is suspicious about Sherlock and Joan's sudden return to the force. Joan has a boxing match with her as a way of approaching her as an equal.
Sources and content license
Source and revision history · Adapted from Wikipedia contributors, List of Elementary episodes. HTML formatting and reference markers removed. · Content license