Where there's a will, and also Nero Wolfe, odds are there is also a body or two.
It's 1938, and Nero Wolfe is short on money, so he takes a case he'd rather not: three sisters who want him to investigate the writing of a will. Their late brother promised his sisters a million dollars each, a million to a university, and the residue to his widow. Instead he left most of it to his mistress. (The sisters each received a piece of fruit.) The widow is planning to contest it. To make everything more complicated, one sister is married to the Secretary of State.
Unfortunately, I couldn't like this one as much as many others in the series, as so many of the characters (excluding the residents of the brownstone) are unlikable liars.