Professor T

The professor and Dr. Goldberg are test-driving their relationship at a hotel and spa, but things immediately go awry. Then two people die there. 

The professor and Dr. Goldberg try to understand their relationship as the detectives investigate the unusual death of a student. 

The professor suddenly questions his parentage, thanks to Miss Snares, while a gallery exhibiting his mother's work is targeted by climate activists. 

Dr. Goldberg is also the therapist for suspects in a case involving an actress stabbed by a real knife onstage. 

Miss Snares investigates the dean's past while he relives some of it, thanks to the appearance of Zelda. And the professor and detectives examine a violent burglary.

Dan finds himself frustrated as the professor meddles in another case when he's at a retirement community when a woman is violently killed. 

The professor is avoiding detective work and has backslid following a tragedy, but is eventually convinced to help his old colleagues when a woman goes missing at sea. 

A car crash that might actually involve a murder has uncomfortable reflections of the professor's situation as he inches towards the truth of his past and Lisa and Dan move forward in their relationship. 

A murder at a criminology conference gives the professor a chance to prove his mettle to his academic colleagues – and possibly win his job back. 

Professor T tries to reassemble his life, cutting off therapy and trying to protect his mother as a poisoning case hits people at random.

The professor is on trial, and might draw some lessons from a murder investigation he recently conducted within prison. 

When a bride is found drowned in a pool the morning after her wedding, the detectives get a brief reprieve from prison for Professor T so he can help investigate. 

The professor goes to prison, where he faces danger from someone seeking vengeance. He also tries to help prove the innocence of a fellow inmate.

The professor worries about suspicious behavior on Dan's part and wonders if he has been corrupted as an undercover operation heads towards a big end.