The Lotterys, as they call themselves, are headed up by a lesbian couple and a gay couple who joined forces to create a family. They won a lottery jackpot and moved into a Victorian Gothic mansion in Toronto, where their enormous brood is home-schooled. It all seems perfectly normal to nine-year-old Sumac until their hitherto obscure grandfather Grumps comes to stay, upending the Lotterys’ already chaotic family life.