Three aces
Consists of the three novellas; Too Many Clients; Might as Well be Dead; The Final Deduction. Too Many Clients: A wealthy man with a hidden love nest is murdered, and suddenly Wolfe and Goodwin have a whole bunch of potential clients, including the murdered man's employers, his widow, his latest inamorata, another fling's cuckolded husband, and the building caretakers and their teenage daughter. Might As Well Be Dead: a Midwestern businessman hires Wolfe to locate his estranged son, who fled to New York years before after being accused of theft. Locating the errant young man is not difficult, but there's a complication - under a new name and identity, he's on trial for murder and all of the evidence is against him. The Final Deduction: the too-popular husband of a wealthy but has-been actress is kidnapped and his wife hires Wolfe to conduct the ransom negotiations. The delivery is arranged, the husband returns home, but all is not well. The ransom handover was carried out by the actress' secretary, a slippery and possibly complicit young woman who turns up dead.