I hope I remembered to pay for this, because it's worth it. One should never, never, NEVER permit players to play an assassin (unless you truly want your campaign to self-destruct) but there are assassins (even if they don't call themselves that) in most rolegaming worlds - and a gamesmaster needs to be ready to portray such NPCs.
With this little volume, you are prepared to endanger your PCs with a 3-dimensional assassin who is not a cliche, who has depth and reason and might even be of use to your PCs. And if one is running a TnT campaign in a modern world - well, James Bond is definitely an assassin character. (See Mercenaries, Spies, & Private Eyes for TnT in a modern world.)
There's a marvelous and short solo adventure included, in which you can really let yourself go. After all, in a solo, you're the Player and the GM....and the GM can play assassins very wickedly.
I would drop one half of a star and rate this 4.5, ONLY because I firmly believe that players should not be allowed to ever play such characters. (GMs can and should. Even in solos. TnT players can easily have multiple personalities.)