On the trail of a master criminal, a retired detective and his former police dog expect a quiet time in the Cumbrian village of Keswick. However, when Rex picks up a scent upon arriving at their B&B ...

... the discovery of a body in a shallow grave draws them into a mystery someone does not want solved.

With help from a local amateur sleuth and her dog, our mystery-busting duo set out to investigate two cases at the same time.

Along the way they'll identify a host of possible suspects and have to answer some big questions:

Who stood to gain from the victim's death?

Was it revenge or greed that motivated the killer?

Just how many sausages can a German Shepherd eat in one sitting?

As they battle to reveal the truth, it's clear someone is working to cover it up and if they don't figure this out in time, someone might not live to see another day. In their most deadly adventure yet, can Rex and Albert sniff out the clues?

The answer will be shocking!