Stephen Turnbull (Edward Hogg) hasn't left the house in months. He has an extremely precise daily routine, and his system works well he has no need to interact with the world or think about anything in particular. But one day an infestation of mice wreaks havoc on his schedule, unleashing a chaos that rattles his mental cage and sends him hurtling through the past. This means reliving the disastrous European trek upon which he had embarked the previous year with his best friend Bunny (Simon Farnaby).