Today is Prague cabdriver Jarda's (Jan Dolanský) birthday and he plans to enjoy it. Everything's organized, everything's under control - just like his life thus far. He gets along with everyone, takes care of everything. Jarda's simply "got it" - a great wife, a beautiful flat, a comfortable job, a new mistress, lots of useful acquaintances... Everything's going according to plan until he picks up a conservative and principled retiree (Viktor Preiss) who - in the course of just one day - manages to unravel Jarda's whole life.