S3, E3: A maths genius turns to Sherlock for help when he discovers a body while participating in a puzzle competition; Joan attempts to build bridges with the detective and Kitty.
Starring Ophelia Lovibond, Raza Jaffrey, Rich Sommer
S3, E3: A maths genius turns to Sherlock for help when he discovers a body while participating in a puzzle competition; Joan attempts to build bridges with the detective and Kitty.