Scott is a husband and father who comes to the astounding realization that his accidental "fling" (a one-hour stand might be the correct terminology - and the second time doesn't really count because he was only trying to make up for the first, umm, rather embarrassing quickie) has just closed the coffin lid on his 15-year marriage. Gail is a wife and mother, who is fed up with being the responsible one.
She wonders whether Scott's Big Mistake has given her the push she needed to get out of a marriage where the best-before date expired a long time ago. Nat, their 13-year-old son, can't believe his parents think he's clueless about their huge row.
So now, hiding his hurt underneath the teenage uniform of sweatshirt and baggy pants, Nat retaliates by refusing to see his dad for the obligatory Sunday visit. Rosie, nine and irrepressible, is discovering a new relationship with her dad, which to her delight often includes more regular rations of cream cakes. It's only Nat who has turned his back on her. Lessons for a Sunday Father explores the ragged edges of a marriage break-up from a family's four radically different viewpoints.
