On the verge of concluding the trial of his life, Pierre Maillard, a cold and rigid lawyer, is forced to spend a day with the most unpredictable man imaginable. A day of madness, which seems absolutely endless to him, and where anything can happen, even the most improbable things. So why does Pierre's secretary always trip over the carpet? And why does his boss always ask him the same thing? Finally, how is it that Pierre always receives the same phone call?