I enjoyed every episode of Series 1 as you could see the chemistry between Yukawa and Utsumi.
Season 2 lacked any chemistry between Yukawa and Kishitani.
The final episode involving Utsumi was the best in Season 2 which went back 9 months.
What confused me is that the final Episode involving Utsumi the lightening murders was the story line for the final episode involving Yukawa and Kishitani.
If this is the case how did Yukawa receive a dinosaur box gift from Utsumi from Colorado?
Unless Utsumi returns I see no reason to watch a Season 3.