The Grapes of Death
Les Raisins de la mort (original)
A young woman discovers that the pesticide being sprayed on vineyards is turning people into murderous lunatics.
Starring Marie-Georges Pascal, Félix Marten, Serge Marquand, Mirella Rancelot, Patrice Valota, Patricia Cartier, Michel Herval, Paul Bisciglia, Brigitte Lahaie, Olivier Rollin
It's a horror and drama movie, and has a rating of 6.1 out of 10 from Imdb which is usually fine for this kind of movie.
Watch it here
Not found streaming from Finland.