The Samurai (1967)

Alain Delon plays Jef Costello, a hitman characterized by his icy demeanor and meticulous planning, akin to the precision of a samurai. After a perfectly orchestrated murder leaves him exposed to several witnesses, his carefully constructed world begins to crumble. Among the Parisian streets, pursued by both the law and allies-turned-traitors, Costello finds himself caught in a lethal game in this elegant masterpiece by Jean-Pierre Melville.