Inspector Lewis Series IV Premieres Sunday, September 4th on Masterpiece Mystery!

Tomorrow, Sunday September 4th, the first of four new episodes of Inspector Lewis airs on PBS's Masterpiece Mystery!. Check your local listings for times.

Kevin Whately stars as Robert "Robbie" Lewis, the Thames Valley police officer who was originally introduced as the sidekick in the crime drama Inspector Morse, which is based on a character created by Colin Dexter. In this series, now a Detective Inspector himself, he is paired with Detective Sergeant James Hathaway (played by Laurence Fox).

This fourth season starts with an episode titled "Old, Unhappy, Far Off Things". Luminary graduates from Oxford's last surviving all-female college are on campus to honor beloved professor Diana Ellerby (Juliet Stevenson). There is the confident lingerie CEO, the provocative newspaper columnist — and then there's the passive aggressive Poppy Toynton. Poppy never quite blossomed intellectually like her peers. When Poppy is found dead on the stairs, her seething rage against her fellow graduates exposed, Lewis and Hathaway step into the esteemed circle of women to investigate. But Lewis is haunted by memories of 15-year-old Chloe Brooks, attacked at the college ten years earlier. Lewis's work on that case interrupted by the death of his wife, now his deepening obsession with it threatens to derail the Toynton investigation. Is it unresolved grief or detective's intuition? Lewis and Hathaway get a dizzying education in the scandals and secrets of Lady Matilda's College, as well as a lesson or two in feminism, as they untangle a new case and bring a far off one back into terrifying focus.

Later this month, "Wild Justice" airs on September 18th and "The Mind Has Mountains" on September 25th. The final episode of the season, "The Gift of Promise", airs on October 9th.