Being Nyx follows Emily, a 32-year-old married woman whose life has fallen into a routine she no longer finds satisfying. After quitting her job and watching her husband Daniel struggle with problems of his own, a night out introduces Emily to Adrian Vale — a man representing an adult entertainment company looking for a new woman to take over one of their most successful online personas:
Nyx. Nyx is more than a username. She's an established adult webcam personality with a large following, a carefully built image, and an audience waiting for her return. What begins as simple curiosity slowly gives Emily access to a side of herself she never knew — or perhaps never allowed herself — to explore.

How far she goes, what she tells Daniel, what she keeps from him, and how their marriage changes along the way will depend on your choices.