The greatest movie that I ever seen is Limitless. There is one men which founded secret of maximal power of brain. IQ of main protagonist is maximally increased so he can do a lot of money. His intuition and intelligence increased too. But brain can't work so much, and he  was on the death. Just soon he understood that cheating in life is no good idea.

Если будут другие варианты - выбирай их. Если голяк - то мой)