A heart-warming story set in post-war Poland.

Little Lucja's Grandpa Feliks has seen off the German army, and the Communists, and now he is looking forward to a long and peaceful retirement.

He plans to begin with a tasty Christmas Eve dinner of carp.

But when the carp arrives alive and takes up residence in the bathtub and Lucja's heart, has Grandpa Feliks finally met his match?