Cutting edge

A serial killer seems to be roving the city, targeting a range of victims from an elderly gypsy to a young female accountant and a heroin-addicted mercenary.

In each case, the left hand is hacked off and sent to Charlie, along with a playing card.

It's a high profile case, made tougher by media involvement, pressure from the top brass, tensions on the team.

But when Charlie's own family is targeted by the killer; career concerns go out of the window.

Now it's life and death.