Forty-five minutes after takeoff, the cabin has settled into a calm routine. The delay is behind them: snacks have been served, garbage cleared, and passengers are mentally preparing for arrival. The baby and toddler sleep, the bride dozes, and the crew chats about weekend plans. Passengers begin envisioning the next steps of their journeys home.

The woman in seat 4D unbuckles her seat belt, stands, steps into the aisle facing the back of the plane, and stops. She presses a fingertip to her brooch before entering the aisle. Only one person notices her unusual stillness: Leopold "Leo" Vodnik, a forty-two-year-old civil engineer seated directly across the aisle in 4C.

Leo has spent the flight consumed by guilt and frustration. He flew to Hobart to accompany his mother to a specialist appointment, driven by a fear that something was wrong with her health—a fear rooted in his regret over being distracted by work when his father fell ill and died two years ago. The specialist declared his mother perfectly healthy, and now the flight delay means Leo is missing his eleven-year-old daughter Bridie's school musical, in which she plays Zazu in The Lion King. His wife Neve had predicted the delay might happen. Leo agonizes over the missed performance, feeling it is the kind of mistake one regrets on a deathbed.

Leo also worries about his fourteen-year-old son Oli, with whom he keeps postponing a promised national park walk due to constant work demands. His boss Lilith emphasizes work-life balance in words but measures Leo's worth through billable "utilization rates," creating constant pressure. Leo's guilt about his family extends in every direction—his late father, his mother, his daughter, and his son.

Seated beside Leo are Sue and Max, a jovial middle-aged couple returning from a Tasmanian camper van trip. Sue had tried to chat with Leo during the delay, but he was too wound up to engage. Now, as he stews in guilt and hunger (he refused the snack in irrational protest), the silver-haired woman remains motionless in the aisle beside him. After an uncomfortably long pause, she says quietly, "On the count of three."