Diana Tyson was violently attacked on the university campus. DI Lisa Donckers suspects that the assault is very similar to one that occurred years beforehand, having been a previous student of Professor T's, she thinks he can help.

The university's chief librarian dies from a glass of poisoned wine at a party attended by 115. Was he the intended target? The police asks professor T for help.

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.

An au pair comes home after an evening off to find her employer unconscious in the living room. His daughter has vanished. The investigation leads the police to his business partner.

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.

There is a hit on prominent businessman during an official function. The shooter fails but the intended victim is found dead a few days later. A family feud reminds Jasper of his past