aaaMercedes(MargaLopez)dancesformoneywiththeclientsofSalonMexico,afamouscabaretinMexicoCity.HeryoungersisterBeatriz(Derbez)studiesinanexpensiveprivateschool,paidbyMercedes.Obviously,youngBeatrizdoesn'tknowabouthersister'sjob.TroublesbeginwhenMercedeswinsadanzoncontestwithPaco(Acosta),herpimp.PacorefusestosharetheprizewithMercedes,soshestealsthemoneywhenhe'ssleeping.WrittenbyMaximilianoMaza{mmaza@campus.mty.itesm.mx}