Given the title 'A Nearly Normal Family' True Story, it is highly probable that it is based on a real - life family. Maybe it's a story that was written or told to share the unique experiences of a particular family. It could be a story that aims to show that even though a family may seem normal on the surface, they have their own set of complex relationships, issues, and growth over time.
Yes, 'A Nearly Normal Family' on Netflix is based on a true story. However, specific details about the real - life events it's based on may not be fully disclosed to maintain the drama and mystery in the adaptation.