Highschoolstudent,GroverBeindorf,andhisyoungersister,Stacey,haveaproblem.Theirparents,Janet(Curtis)andNed(Pollak)aregoingtogetadivorce.Desperate,GroverandStaceyluretheirparentstothebasement,lockitup,anddeclaretheirintentionstokeepthemthereuntiltheyreconcile.Whentheirfriendsfindoutwhattheyhavedone,everyoneagreesthattheirmisbehavingparentsdeservethesametreatmentddd