Kate Bishop, a police detective with a shaky marriage, moves from Bristol to London and finds herself partnered with the distinctly eccentric - and rather less dedicated - Jack Armstrong.

Kate and Jack investigate attempts on the life of a banker - and Jack makes an unfortunate discovery about himself.

Jack awaits the worst as he prepares for his operation while Kate and her husband debate returning to Bristol. Oh, and there's been a kidnapping...

Jack gets a new partner who's not only unimpressed by him, but fiercely competitive. Together, they set about solving the murder of a car salesman.

When Ted Finch goes missing, Jack and Georgina concentrate their attentions on the local health club he attends so enthusiastically. Or does he?