La Decima Vittima (Elio Petri, 1965)

In the not too distant future, human aggression is channelled away from war and into a government-licensed murder game known as The Big Hunt. Those who participate in this game must hunt down and kill five victims, chosen by computer, whilst being the target of five equally determined hunters. Fame, glory and some significant income tax concessions await the winner of each game, the one who manages to dispose of his ten opponents.

For the final challenge in her game, the beautiful American Caroline Meredith is pitted against an Italian with a complicated love life, Marcello Polletti. She sells the rights to the killing to a company who will film and broadcast the contest to promote a brand of tea. Realising that Caroline is his would-be assassin, Polletti devises a plan to eliminate her with a crocodile. Things take a bizarre turn when the hunter and her victim fall in love with one another.