La fessée ou Les mémoires de monsieur Léon maître-fesseur (1976)

Monsieur Léon has two jobs: bank clerk during the day and spanker at night. First called to solve the sexual problems of his boss, he will not stop there. Aided by his milkmaid who will serve as secretary, he soon acquired a renown as master-spanker for which he is paid while touting the aphrodisiac virtues of his practices.