Inspector Lewis in The Dead of Winter, Sunday, September 5th, on PBS

Tomorrow, Sunday September 5th, the second of five new episodes of Series III of Inspector Lewis airs on PBS (check your local listings for air times).

In "The Dead of Winter", an Oxford academic is dead on a tour bus and none of the other passengers even took notice. The curious case leads back to Crevecoeur Hall, a vast, history-rich Oxford estate, and as it happens, the setting for much of Detective Sergeant Hathaway's (Laurence Fox) youth. Hathaway reconnects with his past — and Scarlett Mortmaigne, the daughter of the estate's owner. But is he also consorting with a main suspect? It's a case that threatens to expose the shortcomings and secrets of a wealthy family, cloud Hathaway's judgment and ultimately put his relationship with Detective Inspector Lewis (Kevin Whately) in jeopardy.

Nathaniel Parker, who played Inspector Lynley in the long-running series adapted from the mysteries by Elizabeth George, guest stars.

Inspector Lewis is a spin-off of the long-running Inspector Morse mysteries, based on characters created by crime novelist Colin Dexter.

The first two series of Inspector Lewis are available on DVD from Telemystery: Inspector Lewis.