A woman Is found dead at the scene of a car crash, but it seems the accident didn't kill her. Examining the case, the professor finds some uncomfortable resemblances to his own situation.
After discovering the body of an undercover police officer, the CID team blunder into a Drugs Squad operation against a major trafficker that appears to implicate one of their closest colleagues.
Professor T. attempts to solve a murder, when the man who replaced him at the university is killed at a criminology conference that they were both attending.
The professor delivers a series of lectures detailing a high-profile court case of a caretaker accused of murdering his employer. The professor is convinced the man is innocent, bringing him into conflict with the CID team.
Professor T. is faced with an impossible choice in court - to save himself or his former mistress, Christina. Meanwhile, a prison guard is found dead and there is no shortage of suspects.
A jeweller is run down in the street when he crosses in a hurry. In his bag he has a collection of very valuable diamonds. The police suspect there is more to it and visit his family.
A girl with Downs Syndrome claims she knows who murdered her mother, but she doesn't want to say who it is. She only trusts the professor. Lisa is worried about her father and Dan has a surprise when he turns up for their date.
A prominent barrister and his wife are found shot dead in a crime that has uncanny similarities to a double murder that the barrister successfully prosecuted 15 years earlier.
Professor T struggles adjusting to a hostile new environment, remand prison. While there, he still manages to get involved with the case of the murder of a car parts dealer.
A bride is found dead on her wedding night, floating in the hotel pool. The pictures give the impression of perfect happiness. But the police and Professor T. suspect owls in the bog.