The Red Box — Rex Stout

The imperturbable orchid-growing genius is none other than Nero Wolfe. Together with his confidential assistant, Archie Goodwin, he enters the seamy world of high fashion to solve a distasteful murder. One girl is dead, a victim of her sweet tooth. Who sent the poisoned box of sweets? One of her two lovers, or the girl who shared the candied gift and lived? It is a case involving pretty models, petty jealousies, and very ugly prospects for the big man himself.