I suppose my opinion is coloured by the previous read of "The Mermaids Singing". You find yourself longing for a reuniting with its main characters, only to find them mingled in an irrealistic and a bit over-the-top plot. If you were thrilled by "The Mermaids Singing", don't expect to find the same quality here.
What is surprising about this novel, though, is that despite of the fact that the killer is known after the two very first pages (notice his ridiculous name, which irritated me throughout the whole 400 pages), the introduction of a few new characters, such as Shaz Bowman and Donna Doyle, manages to intrigue you and drag you along the storyline. Never mind that the identity of the killer is proposterous, that the sideline-plot is bound to put you to sleep and that the main characters are charicatures of themselves in the Mermaids... This alone makes this novel worth a neutral stance : ** (I wouldn't want to be too positive and give it *** !!).
If you haven't read "The Mermaids...", you might this novel remotely interesting. If you have, try not to think about it!!