Set in a gritty and decadent 1970s America, American Boogeyman follows the elusive and charming killer and the manhunt that brought him to justice involving the detective and the FBI rookie who coined the phrase ‘serial killer’.
Laborie is a high-flying officer in the French special forces. Her mission is to escort Abedin Nexhep, a godfather of the Albanian mafia. Charged with heading a wide-reaching prostitution network, this formidable criminal is due to stand trial before a European court. During the transfer, killers hired by Nexhep set up an ambush to free their boss but Laborie and her men manage to escape...
The film story depicts Emile Buisson, following the death of his wife and child, escaping from a psychiatric institution in 1947 and returning to Paris. Buisson, who three years later would become France's public enemy number one, begins a murderous rampage through the French capital.
When a young soldier, newly returned from war, gets caught up in a drug bust, he is recruited by the authorities to go undercover in a notoriously dangerous prison in order to figure out what is really going on.