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.

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.

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.

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.

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.

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.

As Lewis and Hobson embark on a relationship, a former don is murdered on the night of his release from prison - crushed to death by a Jaguar Mark two.

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

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

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.

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

When Lewis and Hathaway are called in to investigate the murder of a rising Oxford theatre star, they focus their suspicions on his acting colleagues.

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?

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

Before the fourth murder takes place, the team must uncover the guilty secret that their victims share in order to learn the identity of both the killer and the potential victim.

When an idyllic Oxford summer's day is torn asunder by a gruesome parcel bomb, Lewis and Hathaway are called in to investigate.

After a body is found on an Oxford tour bus, Lewis and Hathaway are led to Crevecoeur Hall, a sprawling Oxford estate where Hathaway spent much of his childhood.

When an Oxford housewife is found hanged in her home, Lewis and Hathaway unearth a far darker murder case than the initial suicide verdict suggests.

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.

Lewis and Hathaway investigate the murder of a university friend of pathologist Laura Hobson. As more deaths occur, they realise that Laura's past may hold the key.

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.

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.

Lewis and Hobson are examining the body of murdered Vicki Walmsley when a theft of etorphine is reported by the Garsington Equine Centre. The drug was last used a year earlier on a horse that injured its teenage rider, Joshua Grace – the brother-in-law of Reuben Beatty, the first murder victim.