Emma meets François at an airport in France. He is an astronomer who studies the phenomenon of black holes, and Emma finds herself immediately taken with him. Their romance flourishes during a stay in the countryside. But one day, François disappears on a bicycle ride. Left alone in a big house, Emma becomes afraid and returns to Paris to continue her life as a real estate agent. Soon after, François' brother Michel contacts her and together they try to solve the mystery of François' disappearan...