奥古斯特带领的三个骗子化装成传教士到处行骗,屡屡得手。一次他在街头偶遇自己天真烂漫的女儿,心里不禁有所顿悟,但却被人当场认出是骗子,并在女儿面前给人逮送到警局。出狱后的奥古斯特重操旧业,但在为筹集女儿学费的一次行骗中,他想独吞财物而被同伙痛殴,最终死在山崖边。Aging small-time con man Augusto, who swindles peasants, works with two younger men: Roberto, who wants to become the Italian Johnny Ray, and Bruno, nicknamed Picasso, who has a wife and daughter and wants to paint. Augusto avoids the personal entanglements, spending money at clubs seeking the good life. His attitude changes when he runs into his own daughter, whom he rarely sees, and realizes she's now a young woman and in need of his help to continue her studies. His usual partners are away, so he goes in with others to run a swindle, and they aren't forgiving when he claims he's given the money back to their mark. They leave him beaten, robbed, and alone.