This is a World provided with the Late Night Expansion Pack (similar to NightLife for Sims 2, Hot Date for Sims 1).
It's very urban and busy.
Don Salvatore and his sons' Sims were made by FebruaryRain from Neighbourhood 99.
Other Sims are by EA or some may appear on World Credits.
I made Chiyoku Fujiwara, the star of my Rhapsody in Chinese challenge, and her house is a redesign of the EA Rhapsody in Blue house.
I used a hack to increase fire by Zaroba from Mod the Sims 2.