Episode 1
Sam must investigate a case with a painful personal connection when a close friend is murdered after the Cambridge May Ball.
Episode 2
The case becomes entangled in Annabelle's romantic relationships when Sam discovers her friend may have had an affair with a student.
Episode 3
A young woman is found dead in an empty house. Why was she there? Sam suspects another person was involved.
Episode 4
The hunt is on for Mr Harris, but the murderer may be closer to home. Meanwhile, Sam grows closer to surgeon James Reynolds.
Episode 5
A tragic scene is discovered when a young mother apparently dies of an overdose. When another addict dies in an explosion, Sam has a bigger case on her hands.
Episode 6
Are the deaths linked to a drug war or is this the work of vigilantes? Sam suspects a personal tragedy is at the heart of things.
Episode 7
The death of a farmer involving a combine harvester seems like an accident - until Sam receives an anonymous tip-off.
Episode 8
Sam looks for connections between Ian Neal and a killing in Northern Ireland in 1985. Meanwhile DI Connor's wife arrives in Cambridge.
