Desc: Une touche de bleue: Directed by Claude Gaignaire. With Jean-Claude Frissung, Lolette Gregogna, Jean-Michel Yoyotte, Moni Grego. In a not-too-distant future, a devoted police investigator tracks down a young man suspected of a Sète fisherman's murder, his only clue being a videotape showing the whereabouts of a local gang who appears to include the man in question.