AllMovie

While the French have a knack for fine wine and fine food, they can't come up with a decent serial killer of their own, so an American has to step in to terrorize Paris in this crime thriller. A lunatic is on the loose in the City of Lights, murdering women and disemboweling their bodies. The fiend has already claimed five victims, and police detectives Nathan (Richard Anconina) and Philippe (Frederic Diefenthal) want to stop him before he can find a sixth. Nathan is introduced to an American detective with extensive experience in tracking multiple murderers, and with the American's help, he narrows the case down to a prime suspect -- Douglas Foster Blade (Jonathan Firth), an American diplomat in France who is negotiating a trade agreement between the two countries. Blade has diplomatic immunity, which the French government refuses to lift, despite Nathan's requests. Nathan is removed from the case, but he refuses to stop trailing Blade, and he begins using fellow detective Marine (Chiara Mastroianni) as a decoy is hopes of catching the killer in the act. Six-Pack was based on a book by French crime novelist Jean-Hugues Oppel.