Musician Sofia gathers her three grown-up daughters together to introduce them to her new lover. The sisters are surprised to learn that Sofia's new flame is no charming gentleman, but rather a Czech woman named Eliska. Eldest daughter Elvira is particularly upset by the news, while her sisters Jimena and Sol doubt Eliska's true intentions. Fearing Eliska is merely after mom's money, the three daughters begin an investigation into her background, which leads to all sorts of confusion.