Sacha Gordine

Cop's Honor (Parole de Flic) is a 1985 French crime movie directed by José Pinheiro and starring Alain Delon as retired police officer Daniel Pratt. His teenager daughter was killed by a gang of mysterious hooded killers so Pratt began his own investigation to avenge the killers and their backroom leader.

Students of the prestigious dance school are dying under mysterious circumstances. Inspector Michel Eparvier suggests that the cause of death for women is physical exhaustion for dance lessons as their teacher Wolf brings the girls to exhaustion, making them to practice the technique of movement over and over again.