该片讲述了四岁的朱丽叶和八岁的卡门的邻居阿格尼斯的故事，她以狂热的世界《风的王国》为背景写儿童书。两姐妹发现了他们的世界和这个非凡的宇宙之间的通道。一到那里，女孩们就变成了猫的样子，发现了Sirocco的存在，一个能够控制风的可怕角色。

The feature follows Agnès, the neighbour of four-year-old Juliette and eight-year-old Carmen, who writes children’s books set in a fantastical world, The Kingdom of the Winds. The two sisters discover a passage between their world and this extraordinary universe. Once there, the girls take on the appearance of cats and discover the existence of Sirocco, a terrifying character able to control the wind.