Neon Nights is a side mission in Deus Ex: Mankind Divided.
There are things worth learning about any new street drug, especially one that's getting as popular as "Neon". What is it exactly? Who controls it? How does it affect the people around me? I've heard enough to know that it's flooding the streets of Prague, drowning its addicts in color. But the only way to find out everything I can about Neon - to ultimately do what's right - is to keep digging.