DI Robert Lewis teams up with DS James Hathaway to look into the murder of an Oxford mathematics student.

A middle-aged Oxford graduate is found murdered. The investigation implicates a senior university figure and leads to a long-hidden secret.

A former criminal computer hacker turned best-selling celebrity and one of his student sponsors are murdered after being invited to lecture at Oxford.

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.