Dazy Perrit was an underworld kingpin until a hail of bullets sent him underground. Ben Jensen was a well connected publisher until a persistent gunman unplugged him. Eugene Poor made novelties like exploding cigars until one of them blew him to bits. All three men had a premonition they would die, and now Nero Wolfe and Archie, his ever-faithful sidekick, must figure out why. It's a deadly equation of murder times three.