10-year-old Vinski feels like an outsider and invisible among his age-mates, and even with his single mother Krista. Vinski meets a mysterious pharmacist who gives him a bottle of magical powder. A powder, that allows you to become invisible for real and walk through walls. It is fantastic to have the powers of a super hero, but soon a group of crooks becomes interested in the secret of invisibility as well.

1918年，在一个拘留营里，一群芬兰演员被判处死刑。当一个重要的德国将军到达营地时，他们被告知如果能使将军欢笑，他们就能活命。

一部有关芬兰瑞典族作家和插画家及姆明动画形象的创作者图苇·杨松的传记片，电影围绕着图苇·杨松的早期生活而展开，从战时到1950年代中期。电影同时表现了她的个人情感，以及姆明角色和畅销系列小说的创作过程。