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 and Hathaway 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.
The death of a chemistry professor may be linked to a student reported missing 15 years before.
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.
An American academic is found strangled after giving a lecture at Oxford.
Lewis and Hathaway investigate the murder of a baby sitter in a suburb.
Lewis and Hathaway investigate the death of an Oxford professor.
Lewis and Hathaway try to determine what happened to an English professor whose body is found ritually buried.
Lewis and Hathaway investigate a blackmail plot gone wrong.
A professor is questioned when a student is found dead.
A bishop may have been poisoned for her progressive views.
A reunion at Oxford's all-female college ends with a student's murder.
As the body count rises during a murder investigation, Lewis and Hathaway suspect a pathologist knows more about the deaths than she admits.
Lewis and Hathaway are called in to investigate the death of a competitor at a professional quiz contest.
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.
Lewis encounters a rock star who was presumed dead years earlier.
The murder of a small-time criminal may be connected to a botched attempt years earlier.
Lewis and Hathaway sift through the motives of many suspects who may have murdered a young actor.
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.
Consequences of the investigation into the murder of a prominent don hit Lewis close to home.
Lewis and Hathaway are led to a gambling addiction group when they investigate the murders of a student and maintenance engineer.
Lewis and Hathaway unearth horrific secrets after an Oxford housewife is found hanged in her home.
Inspector Lewis and DS Hathaway investigate the death of an Oxford student.
Inspector Lewis and DS Hathaway investigate the murder of a middle-aged Oxford graduate.
Lewis and Hathaway must trawl through ancient Greek clues to find a murderer.