Manuel is a crafty cowboy and swindler who lives to serve his two great loves – his fiancée Das Dô, and his mule Beija-fulô – and his business of selling unsound horses to suckers. The killer Targino arrives in town looking for a horse. Thinking that he is being clever, Manuel sells a sick horse to the assassin. Targino swears that he is going to kill Manuel, and dishonor Das Dô’s reputation after he’s dead. Under pressure, Manuel calls on the magic of Toniquinho das Pedras to protect his body. However, the witchdoctor demands the mule Beija-fulô as payment. Manuel, sees himself in the dilemma between having to choose between his fiancée Das Dô, and the mule, Beija-fulô.