In 1991, amidst the urban landscape of Oakland, California, Charles Cosby, a cocaine dealer, experiences a life-altering moment after penning a fan letter to Griselda Blanco, the infamous “Cocaine Godmother,” who is incarcerated in a nearby federal prison. Half a year later, Cosby finds himself transformed into a multi-millionaire, romantically involved with Blanco, and at the helm of her lucrative $40 million annual cocaine empire.