Joan worries Sherlock's sobriety is at risk when she learns he has been lying to her about attending recovery meetings. Also, Sherlock and Joan discover a man's death caused by ingesting poisoned sausage is connected to a lab working on a breakthrough in the artificial meat industry.
Did You Know?
In his letter at the beginning of the episode Sherlock references six napoleons. A short story called The Adventure of the Six Napoleons was written by Sir Arthur Conan Doyle. See more