This new series finds DI Humphrey Goodman eagerly awaiting the return of Martha, an old acquaintance from London. But as soon as she arrives on the island, their burgeoning romance is put to the test by an untimely murder. From a cricket club president murdered in the middle of the pitch, to a scientist found dead halfway up a volcano, there are more fiendishly difficult puzzles for the team to tackle. And a seemingly unsolvable case takes Humphrey and the gang to London, in a special two-part story.

Florence becomes emotionally involved in a case when an old schoolmate is found dead, and she realises the only way to right a past wrong is to find justice for her friend in the present. Meanwhile, a surprise encounter rakes up long-buried memories for Dwayne, and JP is struggling with the realities of married life. From a cricket club president murdered in the middle of the pitch, to a scientist found dead halfway up a volcano, there are more fiendishly difficult puzzles for the team to tackle. And a seemingly unsolvable case takes Humphrey and the gang to London, in a special two-part story.