Rough Nights at the Three Feathers was a seminal WFRP 1st Edition one-shot adventure published by Games Workshop in the 80s. This latest reprinting links it to 4 other adventures, by original author Graeme Davis, making a complete set of adventures that can form a mini-campaign (though I'd recommend you space them out with some other adventures and once C7 reprint The Enemy Within that'll be a cinch).
Rough Nights is reprinted here in full colour with glorious artwork making this its prettiest edition. Its sequel Natassia's Wedding is fully expanded out. Lords of Ubersreik is a reprint of the main chapter from 3e's Edge of Night. The rest of Edge of Night you're not missing much - just some very sketchy 3e component wrangling. This time the Lords of Ubersreik/Edge of Night is more integrated into the overall narrative. Two original scenarios - one set in a court and the other at the opera - work on a pretty similar theme.
Essentially each of the scenarios involves a whole host of things happening around the PCs that they must react to. This can be a real challenge to GM but if you like multi-threading subplots this is the collection for you.
There is also an appendix for a new playable race, and for pub games that you can use in any pub-based adventure, or even play for real if you're ambitious.