GregfoundedacompanycalledAlibi.comthatcreatesanytypeofalibi.Withhisassociate,Augustin,andMedhihisnewemployee,theydeviseunstoppablestratagemsandstagingstocovertheirclients.ButmeetingFlo,aprettyblondewhohatesmenwholie,willcomplicateGreg'slife,whichbeginsbyhidingthetruenatureofhisactivity.Duringthepresentationtoparents,GregunderstandsthatGérard,thefatherofFlo,isalsooneoftheirclients.