What a mess! That's the best thing I can say about this. The first problem is centering a convoluted plot involving assassination and a dark secret past centered around a production of an opera whose main star antagonizes the Cuban exile community. Its hard to feel any sense of urgency when 1) Cuban exiles, to my knowledge, have never engaged in acts of wide-scale violence, and 2) the Exiles are angry because the lead in an Opera performed in Cuba at some point in time.
Taking an already hard to swallow plot and combining it with dull and exasperating characters is not a recipee for success (but then again, this is Parker's fourth book in the series, so maybe it is). The protagonist Gayle seems bipoloar with the emotional maturity of a teenager. Her fiancee is, in fact, domineering and hardly a sympathetic character. I felt the greatest amount of pathos for the book's implausible villain, not a good thing.
Also, the author has a penchant for putting in random lines of beginner level Spanish. I'm glad that Barbara Parker passed her high school Spanish class, but really, it was wholly unnecessary - as is this entire novel.