A secret agent

A secret agent was directed to a posh condominium complex to contact an anonymous source.

\“Williams is the name,” he was told by his superior.

“Hand him this envelope.” Arriving at the complex, he was confused to find four different Williams occupying adjacent quarters.

He decided to try the second condo. When a gentleman answered his knock, the agent spoke the pass code:

“The grape arbor is down.”

Looking him over the man shook his head. “I’m Williams the accountant.

You might try Williams the spy. Two doors down.”