The Farmer (1977)

Kyle Martin returns from WW2 as a silver star hero, but realizes running a one man farm is not profitable, and the bank wants to foreclose. Then a gambler Johnny has a car accident near his farm, in which Kyle saves his life, and Johnny offers him $1,500, which still isn't enough to save the farm. Then when Johnny past-posts on a horse race for over $50,000, he angers local mobster Passini as he and his three henchmen kill Johnny's bodyguard and then blind Johnny's eyes with acid to "make a example out of him". Johnny asks his girl Betty to ask Kyle to kill Prassini and his men one by one for $50,000, the money he needs to save his farm, which sets the path for revenge.