Oliver the Eighth (1934)

Barbershop owners Stanley and Oliver both answer a personal ad from a rich widow seeking a husband. Oliver hides Stanley's reply and only mails his own. When Oliver receives a proposal of marriage from the widow, he sets off to start a life of wealth and ease. But just then Stanley discovers his unsent letter and demands to go along. At the widow's home, they're informed by the creepy butler that his mistress is crazy; having been jilted by another Oliver, her hobby is marrying all the Olivers she can find and slitting their throats. So far, there have been seven Olivers.