A misanthropic comedy by Gérard Lauzier, Tête Dans Le Sac satirizes the arrogance of a 50-year-old owner of a prosperous ad agency as he tries to join a swinging, twentysomething clique of fast-living friends. Romain (Guy Marchand) drives a Jaguar, lives in an opulent bachelor pad, and has a gorgeous mistress (Marisa Berenson) -- yet he is trying to seduce the 22-year-old Eva (Fanny Bastien). She, in turn, is really interested in Dany (Patrick Bruel), a young man whom Romain hires to work in his agency. While Romain is played for a fool by Eva and her friends among the cocaine crowd, Dany has his own plans for the future and they do not involve his foolish boss. Aside from a few stereotypical portrayals of the denizens of a wild nightlife, Lauzier succeeds at revving his cynicism into high gear as the young sharks swim around an unsuspecting Romain.