Rent Death in a French Garden (1985)

A rich business man and his young wife Julia hire David to teach guitar to their teenage daughter Vivianne. Julia quickly seduces David and they begin a steamy affair, which unbeknownst to them is being filmed by the next door neighbour, whom David has befriended. When an unknown assailant attacks David, he realises that he's become involved in a web of intrigue that runs deep. An elaborate manipulation plays out, with murder, kidnapping, suicide, a payoff, videos and a surprise pairing. The shadowy characters and the dark sensual backdrops make this a thrilling provocative film.