Reuben Maitland

The truth can kill you…Reuben Maitland runs the UK’s most elite crime squad, working only on the highest-profile cases, tracking down the country’s most vicious criminals. At the cutting edge – controversial, ruthless, effective – the squad have always made enemies. But now they’re in danger. A killer is using their own techniques against them. The hunters have become the hunted.Reuben must find the killer before his team is eradicated. But the more questions he asks, the more complex the answers become.

There is a killer loose on the London Underground. He kills without leaving any forensic trace, and seemingly without motive. Genecrime, the UK's elite forensic unit, are stretched to the limits trying to find one usable clue. And there is another problem facing Genecrime. Before he was sacked as head of the unit, Reuben Maitland developed a system to predict latent homicidal behaviour from people's DNA.