But Professor T's buttoned-down world is slowly undone when he is persuaded by one of his former students, Detective Sergeant Lisa Donckers, to assist her in investigating a difficult case. The professor's encyclopaedic knowledge of criminal psychology and his brilliant mind prove invaluable to the under-resourced CID team, but the cracks in his carefully constructed emotionless carapace also begin to show. Professor T is based on the hit Belgian series of the same name.

Episode 1 | Anatomy of a Memory

Professor T is persuaded by a former student, now a police detective, to help her investigate a serial rapist. When he discovers his mother is trying to sell his long-abandoned family home, T makes a momentous decision.

Episode 2 | A Fish Called Water

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, but not everyone on the police team is happy with Professor T's involvement in the investigation.

Episode 3 | Tiger Tiger

Professor T becomes embroiled in a hostage situation, but his unconventional negotiating tactics do not go down well with the police. Old flame Christina reveals all is not well with her marriage.

Episode 4 | Mother Love

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

Episode 5 | Sophie Knows

Professor T befriends a vulnerable girl and is convinced she is the key witness to a murder. Dan and Lisa agree to go on a date but when her boss confronts her about their inappropriate relationship, Lisa makes a bold decision.

Episode 6 | The Dutiful Child

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. It's Professor T's birthday and with it comes a haunting childhood memory.