《指甲》是2023 上映的一部科幻 類型的影視作品，Setinanuncannyfuture—orperhapsaslightlyalternatepresentwherecellphonestechnologyisnowheretobefound—AnnaandherpartnerRyanhaveachievedeverycouple’sdream:theyareinpossessionofadocumentcertifyingtheirtruelove.Theircomfortableifsomewhatmundanelife,however,leavesAnnaquestioningtheirsuccessfullovetest,administeredbyplacingtheirextractedfingernailsintoacutting-edgemachine.AnnasoonbeginsworkingfortheLoveInstituteunderthetutelageofDuncan(LukeWilson),which,inadditiontodeterminingacouples’statusviathemysterioustest,trainsthemtodeepenbonds.There,she’spairedwiththeexperienced—anddevastatinglycharming—Amirtotakecouplesatvariousstagesofrelationshipsthroughaseriesoflove-buildingactivitiesbeforethebigtest.Asthenewcolleaguesworktoamelioratetheconnectionsofclients,AnnabeginstowonderifperhapsAmirisheronetrueloveandiftrustingherownfeelingsisamorereliablemetricthanwhatisdeterminedbyamachine.