This week, we bring you a special programme focusing on the referendum that could drastically change Turkey's political system. If Recep Tayyip Erdogan secures the April 16 vote, he could become the most powerful president Turkey has ever known. We tell the tale of a man who now dominates Turkish politics, how the opposition is struggling to make its voice heard and how authorities continue their purge on Turkey's institutions in the aftermath of last summer's failed coup. Throughout the show, we'll be accompanied by Dorothée Schmid, a Turkey specialist at the French Institute of International Relations.