InsomniatellsthestoryofsuccessfulcareerwomanEmmaAverill,whofearssheislosinghermindaftersufferingfromsleepdeprivationtwoweeksbeforeturning40.Hermotherhadasimilarexperienceatthesameage,sufferingaviolentpsychoticbreakdownonthenightofher40thbirthday.Butevenasshere...