In 2046, an inmate named Corry, convicted of murder, is sentenced to fifty years' solitary confinement on a distant asteroid. On the fifteenth day of the sixth month of the fourth year of incarceration, he is visited by the spacecraft (flown by a Captain Allenby) that brings him supplies and news from Earth four times a year. While Corry expects that perhaps he and Allenby will have time to play cards or chess, the captain informs the inmate that the ship and crew can stay only fifteen minutes this time; the asteroid's orbit is such that they would otherwise be stuck fourteen days at least, awaiting favorable orbital conditions to depart. Allenby's crew resent being away from Earth because of the likes of Corry.