Five overweight souls find comfort and solace attending their local diet class. Although none of them are particularly interested in losing weight, they all manage to keep up the pretence, much to the dismay of class leader Moira, who herself carries around a very embarrassing secret. This highly relatable comedy uncovers their hidden sweetie stashes and fast-food flyer drawers as they constantly attempt to justify to the very edgy Moira their collective failure at the weekly weigh-in.