A violinist loses his nerve on stage, and some miles away a lonely woman is killed in a hit-and-run accident. How are they connected?

Mary, Edith, Tom, and Anna each struggle with a dilemma; Gillingham makes clear his intentions to Mary; Edith endangers her reputation.

Bates attempts to learn what's troubling Anna; Thomas finds a new ally on the staff; and Alfred takes a test in hopes of becoming a chef.

Rose is to be presented at Buckingham Palace. Martha Levinson and Cora's brother arrive from New York and make quite an impressions amongst London's high society. And the Crawleys are implicated in a scandal that threatens to engulf the monarchy.

Finch and Reese try to protect a psychologist who uses unorthodox methods to help patients achieve closure; flashbacks reveal Finch's state of mind after the death of his best friend.