The Munsters (1964)

S1E21 Don’t Bank on Herman

Herman and Grandpa visit the bank to withdraw some cash but are mistakenly identified as robbers and given eighteen thousand dollars. Once home, Herman feels guilty about the mix-up and is determined to return the money. In a late-night attempt to rectify his mistake, he and Grandpa sneak back to the bank, only to find themselves accidentally trapped inside the vault.