In a shop that sells small characters made from plastic cords, Nicolas the little musician" is the only fully finished one. He wakes up one day and decides to build "Guillemette the little dancer".
Unfortunately, he fails to tie the cords together properly and the dancer becomes entangled, turning into a thousand-headed monster.
Nicolas then creates a giant child made from wire with long pianist's fingers in order to help untie the little dancer, freeing her from her tangled prison.