Watch: Millionaire Gives Cash Away in Twitter Scavenger Hunt

The story seems like something out of a classic movie: a mysterious millionaire giving away his money in a free-for-all scavenger hunt.

But in San Francisco, one mysterious moneyman is doing just that — and disseminating the clues in the form of tweets.

Twitter user @HiddenCash has been hiding envelopes with $100 bills (or 5 $20s) all over San Francisco and then tweeting their whereabouts. The only thing he asks in return is to tweet out a photo when you find the cash.

The benefactor, who has not revealed his identity, said in an interview with CNN “This is not a set-up charity, but I wanted to do something fun and creative.”