Amoviedirectorisapproachedbyhisoldmathteacherwithagreatmovieidea:theDevildeclaresthattheEarthishell.Thedirectorrejectstheidea,butsubsequenteventsinthelifeofawriter,afriendofthedirector's,andayoungprostitutehelovesseemtoprovethemathteacher'sidea.