This short story was part of an anthology called 'The Unquiet', and, as with all such collections involving J D Robb, there's an overall theme to the anthology, so I suppose it's necessary to make allowances when this story follows that theme, and is a mix of Jekyll and Hyde, and the Icove case. So, here we have Dallas recovering from her experiences in 'New York to Dallas', but called out to some rather nasty murders, apparently carried out by someone with medical skills and something to hide.
What's good is that we get to meet up again, however briefly, with some of the regulars we've come to know and love: Mavis and Bella, Charles and Louise. We even see Dallas making some effort to be pleasant to Mira's poor Admin. The storyline is fast-moving, and quite good, but I don't think the book is long enough to justify the obligatory sex scenes with Roarke, which have never been all that well written in any of the In Death books, but come across as being there as either a hangover from Nora Robert's Mills and Boon days or because her publisher feels the reader needs such prose to be included every so many pages.
So, the plot is quite good; many of the favourite characters are there; it moves Roarke's and Dallas' relationship on a little further. I just feel a little cheated that my mind (like those of quite a few other reviewers) kept drawing parallels with Jekyll and Hyde and the odd Batman character.