Crime/fiction, In French with English subtitles. Directed by Kaouther Ben Hania 1h30 2013

Tunis, before the revolution.  
A man on a motorcycle, armed with a razor, slashes the buttocks of women who have the misfortune of crossing his path.  He is called The Challat of Tunis, or “The Slasher”. 
Local news?  Political manipulation?  Nobody has ever seen him.  Ten years later, a young director decides to investigate and unravel the mystery of the Slasher of Tunis