Hathaway works his first case with new partner Det. Sgt. Lizzie Maddox; Lewis, struggling to adapt to retired life, jumps at the chance to rejoin the force.
Hathaway and Maddox investigate a string of murders resembling a case that Lewis worked on 13 years before.
Lewis, Hathaway and Maddox find themselves put to the test as they investigate the brutal murder of an American classics student.
Hathaway works on his first case as an inspector, aided by his new partner Lizzie Maddox; Lewis jumps at the chance to rejoin the force.
The murder of a university psychologist has the team puzzled.
Lewis and Hobson embark on a relationship; former Oxford don Richard Seager is crushed to death by a car.
The investigation of the death of an elderly man whose body was found in a field leads Lewis to a funeral home and a former colleague.
Lewis and Hathaway investigate the death of a psychic, who turns out to be an Oxford psychology research fellow.
A visiting professor is found strangled after delivering a controversial lecture.
Lewis and Hathaway investigate the murder of a baby sitter in a suburb.
Lewis and Hathaway are drawn into a world of virtual bullying when Professor Miranda Thornton is found dead after her dating video is leaked onto a vicious website.
When botanist Liv Nash accidentally digs up the body of recently buried English Professor Murray Hawes, Lewis and Hathaway are called in to solve multiple riddles.
What seems like a blackmail plot gone wrong actually involves a decades-old secret which Lewis and Hathaway must uncover to stop the bodies piling up.
Lewis and Hathaway uncover a web of lies, jealousy and madness while investigating the death of a student during a clinical trial for a new anti-depressant drug.
A female bishop is found dead after drinking poisoned wine in the archaic St. Gerard's Hall and Lewis and Hathaway suspect her liberal views may have been to blame.
A prominent Oxford professor is retiring, but during a reunion of her brightest students, one of the group is found murdered.
Lewis and Hathaway are approached by a medium who claims that they are in grave danger; after a series of murders, they begin to believe her.
Lewis and Hathaway find themselves up against a quizmaster when the standout competitor at a private quiz weekend is killed before the competition begins. Is competition the motive, or is it just a convenient cover to settle old scores?
Lewis uncovers a blackmail plot following the death of Andrew Crompton, master of Gresham College.
An investigation leads Lewis and Hathaway to the Oxford estate where Hathaway spent much of his childhood.
An old rock band on the verge of a comeback is linked to the death of a young orphan.
The murder of a small-time criminal could be connected to a botched murder attempt from years before.
Lewis and Hathaway investigate when a maintenance engineer is found dead in the basement of the Bodleian library.
Two clues -- a bloodstained note and a broken antique mirror -- help Lewis and Hathaway find the connection between the victim and an Oxford professor.
Lewis and Hathaway track down the prime suspect in the assault of a teenage girl, but he has an alibi confirmed by three high-standing members of the community.
As Lewis learns more about a religious group that seems to be targeted by a serial killer, he starts to question his trust of Hathaway.
Lewis and Hathaway suspect underworld connections are linked to the murder of a German history professor.
Lewis and Hathaway are led to a gambling addiction group when they investigate the murders of a student and maintenance engineer.
Lewis has doubts about the suicide verdict of a housewife found hanged in her North Oxford home, after discovering a key piece of information.
Lewis and Hathaway are called in to investigate when an Oxford student is found dead in her hotel room.
Inspector Lewis and DS Hathaway investigate the murder of a middle-aged Oxford graduate.