From the Publisher:
There's no one or nothing the great detective Nero Wolfe wouldn't take on if the price was right. That's something wealthy society widow Rachel Bruner is counting on when she writes him a check for a whopping hundred grand. The oversize genius and his able assistant Archie Goodwin soon find out why the prize is so generous as they lock horns with the FBI. And these highly trained G-men have a way with threats , tails, and bugs that could give even sedentary sleuth Nero Wolfe a run for his money.
Rex Stout: The Doorbell Rang. A Nero Wolfe Mystery. Introduction by Stuart M. Kaminsky. Crimeline, ISBN: 0553237217 (July, 1992), 192 p., $5.99