Roy's superstitious grandmother warns him that if he pulls faces and the wind changes he might be stuck like that forever. Roy takes little notice until a sudden gust of wind forces the door open.

It's Sunday lunchtime in the O'Brien house and Roy is making faces at Becky, who has decided to become vegetarian. Becky's decision, however, means that the family have to make do with a nut roast instead of their usual joint of meat.

Roy's superstitious grandmother warns him that if he pulls faces and the wind changes he might be stuck like that forever. Roy takes little notice until a sudden gust of wind forces the door open. Lo and behold, Roy's cartoon face gets stuck in a massive inane grin.

His school friends rally round, using a series of enterprising methods to try to reverse the process but to no avail. With the annual school photo looming, will Roy be able to restore his face in time, or will his ridiculous expression adorn the walls of Ballyfermot School for years to come?