Lucy Liu as Dr. Joan Watson and John Noble as Morland Holmes
Holmes and Watson search for a computer hacker responsible for three murders, including the death of a Russian billionaire who was visiting New York City. Also, Joan is surprised to receive a solo dinner invitation from Sherlock's father.
"Murder Ex Machina" (Episode 9, Season 4 of Elementary)
"Murder Ex Machina" (Episode 9, Season 4 of Elementary)
