So they don't forget me

On one ordinary night in one ordinary year, Tommy Llewellyn’s parents wake up in a flat with no toys or nappies, no photos of their baby on the walls, and not a single memory of the little child sleeping in the cot being theirs. Tommy, you see, is destined to be forgotten. Every year on the same day, everyone around him forgets he exists. Instead of a birthday party, Tommy has to reintroduce himself to people he has known for years.