David Teitel rings up groceries at The Big Carrot, an organic market in Toronto, and turns every total into a lesson: a historical date, a baseball statistic, an equation pulled straight out of the till. Customers know him as the cashier who can't stop teaching, a reputation built over more than thirty years that started at a cheese shop in Kensington Market and once got him onto the game show You Bet Your Life in the early nineties. The film follows him home to an apartment covered in handwritten notes, taped to walls, appliances, and cupboards, functioning as schedules, reminders, and a running record of the people and facts he doesn't want to lose. Underneath the performance is a harder story: David has lived with hepatitis C for 39 years and is waiting on a clinical trial, and he talks through his parents, a difficult adolescence, and a stretch of isolation in his twenties while he waits. The numbers and the facts turn out to be how he holds himself together.