I guess I should try the key in the lock.

You were given Mr. Hewitt's keys by The Firm, who had gotten them as part of Mr. Hewitt's personal effects from the hospital where he passed.

After trying several keys, you finally locate the unassuming brass key that fits in the lock. The lock turns with a satisfying, deep *thunk* of an expensive, and secure, piece of well-engineered (probably German) equipment.

"What is the password?"

A disembodied voice asks.