1. The Soul of Genius

6.25

. 16 May 2012. 90 min

When a botanist accidentally digs up the body of the recently buried Murray Hawes, Lewis and Hathaway are set upon a seemingly impossible quest.

2. Generation of Vipers

6

. 23 May 2012. 90 min

Lewis and Hathaway are drawn into a world of virtual bullying, but very real murder, when a professor is found dead after her dating video is leaked online.

3. Fearful Symmetry

7.5

. 30 May 2012. 90 min

When a babysitter is found dead, Lewis and Hathaway are drawn into diverse new worlds including squats, swinging suburbia, primate labs and fetish photography.

4. The Indelible Stain

6.125

. 6 June 2012. 90 min

Lewis and Hathaway investigate when a controversial American academic is murdered after speaking at Oxford's Department of Criminology.