Miguel, a young psychiatrist working in Madrid, learns that his wife has just dumped him for no one else than his own father while he's expecting his mother-in-law's visit, who's come to the city on a medical revision, and doesn't know anything about her daughter's affair; to make things worse, one of Miguel's deranged patients has just stolen his wallet. Going to his patient's home to retrieve his wallet he'll meet instead his spontaneous and outspoken hairdresser sister Jasmina, who's bound to change Miguel's ordered, upper-middle-class world for good.