A translation of the review:
This truly dark addition of the popular 3rd edition of Dungeon and Dragons aims at high-level characters. Completely new topics for the play are covered, which certainly can make a campaign more exciting and more complex, e.g. an eye on slave trade or the sacrifice of people victims. Besides there is a number of evil monsters and evil prestige classes, some new items, new spells and a little of roleplaying material.
This book should be a must for each Dungeon master who wants to go evil on his group, whether in form of an evil monster or evil Commoners... Certainly the book is also good for the plundering character, particularly regarding the partly really imposing and dark prestige Classes.
Even if one would wish a few more additional information here and there (as always with WotC), I'll give 4 stars for the work.
PS: Sorry for the bad translation, it is partly based on Babelfish, for speed reasons.
