Sexy Dancing(2000)

Sexy Dancing is a psychological thriller that unfolds when Benoit grows suspicious of his girlfriend Marianne's sudden behavioral changes after she enrolls at a prestigious dance school. The institution is run by Gloria, a charismatic instructor already linked to a student's mysterious death—a fall from a balcony that may not have been accidental. As Marianne grows distant, Benoit discovers she's become sexually involved with Gloria. This revelation ignites dangerous jealousy in Camille, another of Gloria's students, who sees Marianne as a rival for the instructor's affections. Fearing the worst, Benoit begins to suspect that Camille's obsession could turn deadly. Tension mounts as he races to uncover the truth before another tragedy strikes.