The Pied Piper of Hamelin (1957)

The singing rhyming citizens of Hamelin hope to win a competition with rival towns for royal recognition To this end the mayor outlaws play which is a bit hard on the children and refuses to help a rival town when its flooded But rats seen only as shadows fleeing the flood invade Hamelin in droves a magical piper whose music only children and rats can hear strikes a bargainwhich once the rats are gone the Mayor and council renege on to their subsequent regret