A surprise party, a birthday, a bathroom. Lu is 40 years old and her three best friends Titti, Maria Sole and Angela decide to organize a surprise party at her boyfriend's house. In a night of madness, drunkenness and misunderstandings, the four ladies are faced with the truth about their friendship. The bathroom is a metaphor for their lifes, an introspective world. It is the space where you can stay alone or together, where you can isolate for a few minutes, where you can scream or cry in silence.