Brewster's Millions

In the novel, also a comedy, Montgomery Brewster inherits a million dollars from his grandfather, but shortly after that, his eccentric uncle passes away. The uncle hated the grandfather, so in his will he stipulates that Montgomery will inherit seven million dollars only if he can spend the million he already inherited within a year. Money went a little further back in 1902, which is why the later adaptations switched it to a month.