Vassilis Risvas is a Greek screenwriter, playwright and actor.
A lonely criminology professor attempts to solve the mystery behind five murders by decoding the puzzle of five Pythagorean theorems, in a crime story that features renowned French actor François Cluzet in a key-role.
At the time of the Greek junta, in an isolated army camp, a lieutenant forces a soldier to teach him the tango in order to ask the wife of his Colonel to dance with him.
A series of murders alarm the police authorities, as strange symbolisms are traced to every crime scene. The eccentric professor of criminology Dimitris Lainis is asked to shed some light on the mystery.