When fellow police officer, Shaun Quinn, goes missing during a dangerous sting operation to uncover the mastermind behind a £50M diamond heist, DCI Jack Mason is dragged into one of the darkest investigations in his career.

Tasked with finding Quinn, the chief inspector soon comes to the chilling realisation they have underestimated the officer's cunning. Which side of the law is he working for?

Fearing the officer has fallen foul to a dangerous diamond smuggling organisation, Mason and the team enter the dark criminal underbelly of Amsterdam's notorious red-light district.

Haunted by failure, nothing is what it seems...

With Quinn holding the answers, someone has a serious point to prove, and Jack Mason's next decision could be his last.