Qui veut la peau de Roberto Santini? (S)

Flight 623 from Berlin is 15 minutes late. Enough time for a young businessman, on the plane, to throw a part of his life into question. At the airport, Joseph Conrad, a tramp with a troubled past, seems obsessed by this mysterious flight. These two men, worlds apart, have nevertheless one thing in common: the final drop that makes the vase overflow.