Professor T

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.