L'Alpagueur is a free-lance spy from the French secret agency. He's put on the investigation about L'epervier, a serial-killer who employs young boys to help him robbing banks before killing them.
Jean-Paul Belmondo
as Roger Pilard, aka l'Alpagueur
Bruno Cremer
as Gilbert, aka l'Epervier
Jean Négroni
as Spitzer
Patrick Fierry
as Costa Valdez
Jean-Pierre Jorris
as Salicetti
Victor Garrivier
as Doumecq
Claude Brosset
as Granier
Marcel Imhoff
as Director of cabinet
Maurice Auzel
as Road driver 'Gros Bras'
Muriel Belmondo
as First flight attendant
Roger Benamou
as Spanish mafioso
Jean-Luc Boutté
as Second rifle
