Interesting, but rather tame, one-note entry. While vacationing in Las Vegas, Arthur Hill stumbles across large wad of money in a parking lot. After counting the amount, $92,000, he secures it in a bank lock-box and reports the find to authorities. Eventually the money's owner shows up.
Since there's no action nor much plot development, the actors carry the burden. Hill is thoroughly convincing as the honest well-intentioned professor, winning audience sympathy from the outset, while the two other principals, RG Armstrong and Rod Cameron, are also excellent.
Note how the script draws out certain sequences, such as the waiting in the sheriff's office, no doubt to help fill the show's running time. However, we're never bored since we wonder what's happened to the $10,000 that seems to be missing from the original amount. The climax is chilling, especially when you ask yourself what you would do in Hill's place.
(In passing-- Hitchcock Presents was an unusual series for its era. Unlike other dramatic shows, it did not present a series of predictable morality plays in which virtue is rewarded and evil punished. That may not have pleased moralists, but it did make for more fascinating and realistic viewing because audiences could never be sure how a particular entry would end. The Man Who Found the Money is a good example.)