The Saphead is a 1920 comedy film featuring Buster Keaton. It was the actor's first starring role in a full-length feature and the film that launched his career. The plot was a merging of two stories, Bronson Howard's play The Henrietta and the novel The New Henrietta by Victor Mapes and Winchell Smith, which was meant to be an adaption of Howard's play.
一名女模特儿被公然迷奸，此事涉及一个从事地下色情活动的黑帮，警方即派莹、琳、美三名女警卧底查证。他们身着性感迷你裙，频频在夜总会抛头露面，把自已当作诱饵，以待时机与黑帮靠近。不久，她们遇上年轻帅气的艺术家Dan，竟被百般挑逗，莹的男友亮为保全她们，适时的帮一些倒忙，让人啼笑皆非，不可理喻。终于，她们的真实身份被戳穿，Dan及亮竟成了这个抓贼小组的智囊团，他们怪招百出，与黑帮老大玩起了高智商。 羊入虎口，她们能否套出色狼，查出真凶？这场游戏危险而刺激……
女孩“泡泡”在反复观看同一部电影时发现了影片内主角的秘密，而随着电影的不断播放，影片主角的行动开始逐渐脱离电影原初的设定。直至某日，她从虚幻的影像变成了真实的人，渴望来到电影之外的世界……
