Big Mistakes marks creator Dan Levy's first show since Schitt's Creek - but what is it about? Created by Levy and Rachel Sennott, Big Mistakes is dark crime-comedy series that focuses on two "deeply incapable" siblings. Nicky (Levy) is a suburban New Jersey pastor while and Morgan (Taylor Ortega) is an impulsive teacher, who get embroiled in the criminal underworld after stealing a diamond necklace that belongs to a crime syndicate. The Netflix series, which premiered in April, also stars Laurie Metcalf, Jack Innanen, Boran Kuzum and Abby Quinn.