UthamanPradeepisa24yearoldLeadDeveloperinCTSChennai.HeliveswithhismotherandsisterDivya,whoisengagedtoaDentistYogifor8monthsandisabouttogetmarriedin4days.PradeepisinarelationshipwithcolleagueNikhita,whosefatherVenusastriisaverystrictperson.PradeepgoestoherhousetomeetandconvinceVenufortheirmarriageinfuture.Venu,whoseemstobeanorthodoxman,playsaroundwithPradeepforawhileandputsforwardastrangedeal:PradeepandNikitamustimmediatelyexchangetheirmobiledevicesforonedayalongwithrespectivemobile’sunlockingkey.Aftertheendoftheperiod,iftheystillfeelthattheyareinlove,Venuwillnotobjecttheirunion.Else,theycangotheirseperateways.BothPradeepandNikithaagreetoithalfheartedlyandPradeepcomesbackhometomanagehissister’sweddingevent.Duetosomerevelations,PradeepgoestoVenu’shomethenextdayandextendstheexchangeuntilendofhissister’swedding,andvenuagrees.Pradeepalsogetsintotrouble,asVenufindsawaytobringbackallthemessageswhichPradeephaddeletedfromhisphone,sincePradeepcleanedhischatseveryweek.Meanwhile,DivyaandYogiseemtogetalongverywell,asYogiisaculturedmildmanneredman,whotreatsDivyaasequal.Oneday,duringabotchedgroupcallwithDivya,YogioverhearsDivya’smomandauntinsultinghisphysicalfeatureswhenDivyaisnotaround.Duringtheweddingritualsinpresent,hebecomesmoodyanddoesnotallowanyonetousehisphone.ThisputsalotofdoubtinmindsofDivyaandherfriends.Theyrepeatedlytrytogethisphone,openitandcheckthecontents,buttheyarethwartedbyYogi.Therestofthestoryisaboutwhathappenstothetwocouples,anddidtheystayunitedccc