Naive and idealistic insurance agent Tim Lippe welcomes his former teacher into his home, addressing her as Mrs. Vanderhei. After having sex with her, he reminisces about his experiences as her student. In his position as an insurance agent, he is sent to represent his company, Brownstar Insurance, at a regional conference in Cedar Rapids, Iowa, as a replacement for his co-worker, Roger Lemke, who died in an Erotic asphyxiation accident. Tim idolized Roger, believing that his death was merely an unfortunate accident, and that he embodied all it was to be a moral Christian, the key criterion used to judge the winner of the coveted "Two Diamonds" award, which Roger had won three years in a row.