La rivale (1974)

A man,preyed to middle-aged lust ,has a love affair with a woman who works at the pharmacy .But his wife overhears their phone call and she decides to make acquaintance with her rival.She disguises herself and puts on a wig .Both women become friends ,unbeknownst to the husband .But it's more and more difficult to satisfy his two loves ;besides he might meet them when they are together.