1. Episode 1

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. 8 November 2015. 48 min

Simon's body is lying on the pavement. 35 days ago, he and his wife Leslie along with his friends are enjoying a picnic. Chris's warehouse goes up in flames. Private Investigator Claire wins Ruth's praise for a successful sting op in a scam.

2. Episode 2

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. 15 November 2015. 47 min

Claire's investigation into the warehouse fire continues. Chris and Hazel are at each others throats and are increasingly suspicious of each other.

3. Episode 3

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. 22 November 2015. 46 min

Danny is worried about Claire's investigation and seeks Simon's advice on how to conduct himself in a second interview.

4. Episode 4

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. 29 November 2015. 46 min

Suspended Jeff informs Claire that Simon is in cahoots with Danny. Helen is becoming increasingly obsessed with Ruth and finally oversteps the mark.

5. Episode 5

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. 6 December 2015. 45 min

Ruth is wracked with guilt about ending her mother’s life. Katie moves back in with Charlie when she realizes that Charlie has some information about Alun.

6. Episode 6

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. 13 December 2015. 45 min

Fran learns that Jeff's body has been pulled out of the river. Tim and Claire are revealed to have a history. She tells him that Ruth has asked for a report on them.

7. Episode 7

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. 20 December 2015. 45 min

Claire warns Hazel to stay away from Tudor. Elfyn gives Ruth some unwelcome news about Tim. And Martin encourages Leslie to sue for divorce to make things difficult for Simon.

8. Episode 8

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. 27 December 2015. 47 min

By now there are numerous people with motives to murder Simon and they’re all present at Ruth's leaving party, which is being held at the Unit. Someone is responsible.