沃尔特（金·凯瑞 Jim Carrey 饰）本来过着幸福的田园生活，直到有一天他和“23”这个数字扯上了关系，他的生活彻底发生了改变。妻子阿加莎送了一本名为《数字23》的小说给沃尔特作为生日礼物，这本书看来平凡无奇，描述的是一个侦探遭遇了23场杀人梦魇，“23”这个数字就像枷锁一样牢牢控制住他的生活，最后他亲手杀了自己妻子。沃特尔惊奇地发现书中描写的很多情景和生活细节竟然和自己的生活一摸一样，既有过去的，也有即将发生的。小说的情节好像推动着他的生活一步步滑向最后的深渊――他亲手杀死了自己的妻子。为了避免这一结局，沃尔特只有找出这些事件和“23”背后的真相！ Walter (Jim Carry Carrey Jim) was a happy pastoral life, until one day he and the "23" this figure is pulled on the relationship, his life completely changed. His wife Agatha gave a name to Walter as a birthday gift for the number 23 of the novel, the book seems ordinary strange, the deｓｃｒｉｐｔion is a detective suffered 23 murder nightmare, "23" the figure is like chains as firmly in control of living his life. Finally, he personally killed his wife. Walter were surprised to find the book describes many scenes and the details of life unexpectedly and touched his life like, both past and also imminent. The plot of the novel seems to promote his life step by step into the abyss -- finally -- that he personally killed his wife. In order to avoid this outcome, Walter only to find out the truth behind these events and the "23"!