Seventeen-year-oldBellaSwanmovestoForks,asmalltownonWashingtonstate'sruggedcoast,tolivewithherfather,Charlie,afterhermotherremarriestoaminorleaguebaseballplayer。
Sheisquicklybefriendedbymanystudentsathernewhighschool,butsheisintriguedbythemysteriousandaloofCullensiblings。BellasitsnexttoEdwardCulleninbiologyclassonherfirstdayofschool;heappearstobedisgustedbyher,muchtoBella'sconfusion。
Afewdayslater,Bellaisnearlystruckbyavanintheschoolparkinglot。Edwardinexplicablymovesfromsomefeetawayandstopsthevehiclewithhishand。
HelaterrefusestoexplainthisacttoBellaandwarnsheragainstbefriendinghim。
Aftermuchresearch,BellaeventuallydiscoversthatEdwardisavampire,thoughheonlyconsumesanimalblood。
ThepairfallinloveandEdwardintroducesBellatohisvampirefamily,Carlisle,Esme,Alice,Jasper,Emmett,andRosalie。Soonafter,threenomadicvampires—James,Victoria,andLaurent—arrive。
James,atrackervampire,isintriguedbyEdward'sprotectivenessoverahumanandwantstohuntBellaforsport。Edwardandhisfamilyrisktheirlivestoprotecther,butJamestracksBellatoPhoenixwheresheishidingandluresherintoatrapbyclaimingheisholdinghermotherhostage。
JamesattacksBellaandbitesherwrist,butEdward,alongwiththeotherCullenfamilymembers,arrivesbeforehecankillher。Jamesisdestroyed,andEdwardsucksJames'svenomfromBella'swrist,preventingherfrombecomingavampire。
AseverelyinjuredBellaistakentoahospital。UponreturningtoForks,BellaandEdwardattendtheirschoolprom。Whilethere,Bellaexpressesherdesiretobecomeavampire,whichEdwardrefuses。
ThefilmendswithVictoriasecretlywatchingthepairdancing,plottingrevengeforherloverJames'murder。