Some ideas were based out a few books I read. Others were not.
PC's (rank 5-6) were on a Paradise planet conducting R&R and training. Unbeknownst to them, three cults were on the planet getting ready to cause mayhem.
Cult 1) The False Prophets of Hayte, who have been on the planet for several years, were getting ready to conduct a huge massacre at a Musical Theater killing a renowned musical group and hundreds (if not thousands) of spectators. This would enable them to summon a Greater Daemon.
Cult 2) The Architects of Fate, who foreseen the emergence of the “Dead Walker.” A person who was given a gift from Nurgle in the form of a disease, who was to appear on a moon station leaving from this Paradise planet. This would foil the Architect of Fates plans on the moon, which was their base of operations, because the disease would of caused an epidemic that kills everyone. When the Architect of Fates arrived on the Paradise planet a few weeks ago, they looked into the future for a way to avert or eliminate the “Dead Walker.” What they foresaw was the False Prophets foiling their plans to stop the “Dead Walker” at every turn…. except one. And this one path utilized the servants of the 'Left Hand” to eliminate both threats.
Cult 3) A single unknown individual that is gifted a disease from Nurgle, and who is unaware of his/her role in anything.
It started with the PC's enjoying themselves, watching a parade, when all of a sudden a car carrying some beautiful Nobles swerves toward them. Even though it looks like it's out of control, the driver has a glazed look on him. The PC's were able to dodge out of the way, though the other spectators were not so lucky. Keeping a discrete profile, the PC's overhear the driver say to the Enforcers when questioned “One moment I was driving in the parade, and the next I'm talking to you officer. Really, I can't recall what happened.” The driver then promptly gets dragged away, while the PC's are left none the wiser yet.
Cut scene.. An elderly pot belied man in a suit is walking around a table that contains various oddities. A broken clay pot, a red shingle from a roof, a small stone slab, a pen, a nut, and other wildly various items. He suddenly stops and picks up the pen.
“And this unremarkable pen pricked an renowned Noble, who happened to be allergic to the blue ink contained within it. After a week of being sick, he suddenly died, with the medical practitioners ruling it as poison. Little did they know this was regular dyed ink, with no special properties hidden therein.”
The cut scene continued from here with three robed men talking to the pot belied man about the items, and finally they started to discuss the possible identity of the “Dead Walker.”
A similar event like the car incident happens again when one of the PC's are in training. While outside taking a break, the PC started to walk back inside. The PC noticed some workers on top of the 10 story building repairing some bricks and mortar and also noticed a discarded worthless coin laying on the ground near the entrance. The PC correctly decided to grab the coin, which resulted in a crash directly in front of him. A few feet in front of the PC , where he would have been if he wouldn't of stopped to retrieve the coin, was a large brick that had cracked the sidewalk from its' impact. The PC also happens to hear hollering coming from above him in time to look up and see another brick get dropped from a worker 10 stories up, which is easily averted. One of the other workers try to stop the crazy one, causing both to of them to fall to their deaths. Investigation by local Enforcers concluded that the heat got to the crazy one, and when the friend tried to stop him, they both fell.
Cut scene. This one had the Architects of Fate talking to each other and to a few other unknown individuals. They were discussing how to stop the “Dead Walker,” how to use the agents of the“Left Hand,” and how the Angry ones are so misguided.
The PC's now knew something was up, and used subtle actions to gleam information on recent and past odd case files from the Enforcer data vaults. Shifting through the data, going to past crime scenes, and asking various witness non-disclosed questions resulted in the PC's finding out a group of Hayte Priests were operational on the Paradise Planet. An Enforcer who was to smart for her job (they nicknamed her Murphy, from the Dresden files), was also watching the PC's because they peeked her interest by being at two places with odd circumstances, lolly gagging around, and then later investigating past crime scenes that they should not have known about.
Anyhoot, PC's finally discover a hideout of the Hayte group (the owner of a watch maker), and raid the place. After killing the half dozen priests and a Dybuk hidden in a secret basement, they gather intel about the group attacking a water purification plant and poisoning the wells, but also some intel about a person they nicknamed “Dead man Walking.” All they have is a grainy photo of two men standing near a limo. This also had the results of the Enforcers detaining them as they left the building, with the PC's having to reveal who they are or face execution. They swear them to secrecy and advise them to not notify the Arbitrators yet.
Another cut scene was placed here that stated the old pot belied man state “It's time to eliminate the pawns of the Left Hand. Prepare the Golem.” End cut scene.