7-year-old Bertil's parents are at work and Bertil are home alone and bored. He is the only child in the family since his sister Martha died of an illness. But everything changes when he meets little Nils Karlsson Pyssling and they become friends. Nisse who lives in the basement in a room he rents from the rat Tjofsan,wich is cruel.。影片是一部极具东北喜剧风格元素的爆笑大戏,在幽默直接的喜剧语言表达下,立体的刻画出小人物在面对命运挫折时的无奈与妥协。。