The Unsolved Murder of Beverly Lynn Smith (2022)

S5E15 Wrong Side of the Road (1)

After a three-year hiatus, Kitty Winter, Sherlock's former protégé, comes back to New York to alert him about a murderer targeting everyone linked to a case they collaborated on in London. Fearing they are next on the list, Sherlock, Kitty, Joan, and the NYPD team up to track down the killer. Meanwhile, Watson uncovers a life-altering secret that Kitty has been keeping.