When a prominent barrister and his second wife are found shot dead in their home, the crime scene has uncanny parallels to another double murder 15 years ago – is it a copycat killing or was the wrong man prosecuted? Meanwhile Professor T wants to help but he’s in hospital with appendicitis.

A student suffers life-threatening injuries as the result of an arson attack, and quite a few people appear to have motives for it. Dr. Gijselbrecht sends Professor T an assignment, but Professor T has other concerns.

When an attempt is made on a billionaire businessman's life, Professor T suspects the culprit may be much closer to home than the police suspect.

Professor T is called upon to help investigate the disappearance of a six-year-old girl. Tensions rise between DI Paul Rabbit and Prof T until they finally come to blows.

Professor T becomes embroiled in a hostage situation, but his unconventional negotiating tactics do not go down well with the police.

When a blameless librarian is poisoned at a reception at the museum, Professor T is called upon to help narrow down the list of possible suspects.

Meet Professor Jasper Tempest, a brilliant criminologist and amateur sleuth obsessed with cleanliness, structure and order. His genius for solving crimes means he constantly gets his hands dirty to help the police to crack their most baffling cases.