Overview
- PBS Masterpiece will debut the six-part series on Sunday, September 6 at 9/8c in the U.S., with U.K. broadcast to follow later in 2026 on BBC One and iPlayer.
- Producers and PBS say Marble Hall Murders completes the Susan Ryeland and Atticus Pünd television trilogy.
- Lesley Manville returns as editor sleuth Susan Ryeland, with Tim McMullan back as book-world detective Atticus Pünd.
- New cast members include Jamie Blackley, Mark Bonnar, Patricia Hodge, Daniel Cerqueira, Harry Lloyd, Rupert Penry-Jones, Anneika Rose, Danny Sapani, and Zubin Varla.
- The story pairs a present-day case that pulls Susan into danger with a 1955 Corfu whodunit inside the novel, continuing the franchise’s dual-plot format.