Anne has given up trying to find a man who will fit into her sensible and controlled life. Therefore she has chosen to become pregnant with an anonymous sperm donor who has been carefully chosen. But as her hormones get the better of her she realizes that the child may come to resemble the father and possibly get his less flattering characteristics. Anne feels compelled to find the sperm donor and ensure that he is as perfect as she imagines.

某座医院内，小男孩艾尔弗莱德（Pelle Falk Krusbæk 饰）从睡梦中醒来，眼前是第一天来医院工作的清洁工恩佐（Casper Crump 饰）。恩佐笨手笨脚，为吵醒男孩感到抱歉，他们似乎对飞艇玩具有着共同的爱好，这成为他们友谊的开端。晴朗的日子里，两人在花园内再度相逢，艾尔弗莱德聊起了自己的病情，他不久于人世，但预感天堂也许会很无聊。面对这个淡定迎接死亡的男孩，恩佐内心百感交集。第三次相逢，恩佐为男孩讲述关于氦气的事情，氦气能够帮助飞艇飞行，在天空的顶端，飞艇吊着不同的小岛，男孩可以在上面尽情玩耍。
这是生命尽头，最后的幻想……