Once you've settled in to your regularly Night's Black Agents sessions, I highly recommend The Zalozhniy Quartet.
Set in post-Cold War Europe, agents must unearth the nature of the conspiracy from clues, and a tangled web of allies, foils, and enemies.
I liken it to a shorter Masks of Nyarlathotep, wherein the campaign is best run when the Director (GM) has read through all the materials, has prepared and understood where all the events, clues, NPCs, and linkages are in advance so as to maximize the enjoyment and reward of the players when (if?) they overcome this slew of antagonists and difficulties.
Unlike Masks, the author has gone out of his way to enable running the four segments of the campaign in any order! This means that there are options for each segment to be modified if it is played 2nd, 3rd or last (and therefore a climactic ending) in the campaign.
As a resource for a supernaturally touched post-Cold War Europe, it also has a lot of material to mine and reuse in future campaigns.
[5 of 5 Stars!]