Sending a letter of admiration to the imprisoned "Cocaine Godmother" Griselda Blanco sets off a chain reaction of life-changing events for drug dealer Charles Cosby, who becomes her lover -- and a multimillionaire -- in one fell swoop. But Cosby doesn't realize he's been sharing a bed with the notorious "Black Widow," a woman who kills her lovers with ruthless indifference. Billy Corben directs this documentary follow-up to Cocaine Cowboys.