The Businessman presents the sinister tale of Bob Glandier, a morally repulsive executive who murders his estranged wife and attempts to go back to business as usual, until she returns to set about arranging his divine retribution. With help from her dead mother and the ghost of poet John Berryman - thoroughly bored of suburban seances and all too eager to lend a hand - Giselle undertakes the elaborate, righteous, and wickedly amusing haunting of her husband.