Hathaway and Maddox continue to investigate the murder of Travis as the trail leads back to Lewis’s original case. The two detectives attempt to prevent another murder and Lewis sees himself isolated and alone with his reputation in jeopardy.

Lewis and Hathaway are drawn into a world of virtual bullying, but very real murder, when a professor is found dead after her dating video is leaked online.

With his six-month trip to New Zealand with Hobson on the horizon, Lewis is in a race against time to save his career and relationship.

Lewis' reputation is jeopardized when the very first case that he solved as a DI is reopened for appeal and new murders are committed with the original weapon.

Liam Jay is in intensive care and Lewis and Alex believe that he has information about the death of Matt Whiby and the mysterious cremation. It is revealed by Emma Barnes that Johnny Jay, Liam’s father, was at the fateful supper party and he is missing as well.

Hathaway's murder theory has fallen apart. It might take Lewis's insight to close the case - but will his former protege listen?

After a difficult start, Lewis and Hathaway's partnership seems to have gained some semblance of normality. DS Maddox has become a part of the team. Her abilities will be put to the test when an investigation begins on the brutal murder of an American classics student Rose Anderson Her body is hauled from the canal with a stand wound to the neck and abdomen. Suspicious soon fall on astrophysics professor, Felix Garwood who had recently broken off an affair with Rose. However, Felix was married to Rose's supervisor, Philippa Garwood. Could the jealous wife have committed such a murder?

When a botanist accidentally digs up the body of the recently buried Murray Hawes, Lewis and Hathaway are set upon a seemingly impossible quest.

The ethics of a questionable drug on the Oxford campus of anti-depressants calls into account the questionable judgment of a psychiatry professor.

The corpse of a missing student is discovered in the attic of a college chapel.

When a classics scholar is stabbed to death and dumped in the Oxford Canal, Lewis, Hathaway and Maddox find themselves sorely tested by a bizarre case.

When a local businesswoman is bludgeoned to death, it appears to be a blackmail plot gone wrong. As the body count rises, Lewis and Hathaway realize there is a decades-old secret at the heart of the case, which they must uncover to bring the present-day murders to a halt.

When religious fanatic Steven Mullan is murdered, Lewis investigates celebrity atheist Tom Rattenbury and his family, who had been attacked by Mullan.

Lewis investigates the murder of a beautiful young Eastern European woman whose death comes straight from the pages of a popular fantasy novel.

Lewis comes face to face with his past in a case driven by celebrity, scheming, and dangerous sexual politics.

A rape case appears to be solved when the chief suspect is murdered. But nothing is what it seems - and soon the upper echelons of Oxford society close ranks.

When Lewis and Hathaway investigate a murder in town, forensic evidence leads them to suspect there is a connection with the reforming of an old rock band.

Lewis and Hathaway investigate when a controversial American academic is murdered after speaking at Oxford's Department of Criminology.

On a bank holiday weekend Lewis and Hathaway are called in when a top quiz competitor is found floating dead in the fountain of an Oxford college.

An embalmed body is discovered dumped by an isolated farm track. Funeral director Brian Miller identifies the body and GP Matt Whitby confirms the gentleman died of cancer.

Lewis' team must delve into the worlds of social media, drugs, taxidermy, alternative art and the homeless East European community.

Lewis and Hathaway are called in to investigate the death of Reuben Beatty who works at the University of Oxford’s Department of Psychology. He has been discovered dead injected by etorphine, a paralysing agent in the offices of psychic ‘Randolph James’.

Lewis and Hathaway investigate a link between the murder of a professor of German history and the recent winner of a local underground boxing bout.

When the master of a college is found dead at the foot of the observatory stairs, suspicion falls on all of the staff - from senior tutors right down to the scouts.