Oprindelseshistorien for Velma Dinkley, den ubesungne og oversete hjerne i Scooby-Doo-slænget. En opfindsom og humoristisk fortælling, der belyser en af Amerikas mest elskede mysterieløseres komplekse og kulørte fortid.

A strong-willed single mom sets out to reclaim her family's name and make an impact with her revolutionary haircare line but discovers a dark secret about her own mother's past that will turn her world upside-down.