Deadlock (1970)

A young man, Kid stumbles through the Mexican Sierra, shot and half bled to death, carrying a suitcase containing the loot from a bank robbery. Passing out from heat and blood loss, he is found by Charles Dump, a former gold miner living on the outskirts of ghost town "Deadlock" with his daughter. As Dump realizes what's in the suitcase, he tries to come up with a plan to get rid of its owner. As they are joined by Kid's partner in crime, the sadistic killer Sunshine. Soon it's everyone for himself in a violent endgame under the glistening sun where only one can walk away with the suitcase.