A university reunion of some graduates in the mid 1980s turns into murder.
The victim is wealthy Nick Roberts. The main suspect is Simon Dabney, a recovering drug addict and in financial problems.
The characters involved have complicated relationships. Nick is married to Caroline who was at university with him. He made Gill pregnant also at university him.
Nick has supported the child he had with Gill for almost 20 years but then received information that doubted his paternity.
Davies thinks that Simon might have been set up, he has a witness that could confirm his alibi but he had supposedly been dead for years.
Once again the third series is an improvement. A more interesting mystery the quirkiness works better but at times also feels clunky. Maybe it tries too hard to emulate the off beat humour of Jonathan Creek.
There is a good cast list that includes Steve Pemberton, Gina Bellman, Niamh Cusack and Stephen Tompkinson.