All seven episodes of the BBC crime drama starring Mark Strepan and Ben Tavassoli as two young detectives. London Police Constable Rash Sayyad (Tavassoli) finds himself paired with junior fraud investigator Stefan Kowolski (Strepan) after they discover they are both working on the same case involving a pharmaceutical company. Rash begins investigating the murders of a number of drug testers while Stefan is assigned by his boss at the Serious Fraud Office to look into the suspicious awarding of contracts in the industry. As their partnership develops, the pair find themselves taking on two more cases together as Rash's hard work pays off and earns him a promotion to Trainee Detective Constable.