P. is a sad, lonely man. Through the window of a city bus, he observes the scarce night traffic until a beautiful woman passes by him in the vehicle's corridor. Her name is Emma. They exchange glances. From then on, something changes in P. In the following days, they see each other again in the same bus. They begin a sensual game of looks and insinuations, which is suddenly interrupted. Emma does not turn up any more. P. becomes anxious and decides to look for her.
