Love Without Pity (1989)

My New Partner is a 1984 French comedy film directed by Claude Zidi, starring Philippe Noiret and Thierry Lhermitte. Noiret plays a streetwise Paris policeman who takes kickbacks from the minor criminals on his beat to allow them to continue. At the start of the film, his partner is busted for corruption and he narrowly escapes. He is assigned an idealistic new partner fresh from police academy. He sets out to corrupt his new partner and, after a slow start, succeeds spectacularly.

French secret service agent Josselin Beaumont is dispatched to take down African warlord N'Jala. But when his assignment is canceled, he's shocked to learn that his government is surrendering him to local authorities. He is given a mock trial and sentenced to 20 years of hard labor. But Beaumont escapes from prison and vows not only to avenge himself against his betrayers but also to finish his original assignment.

The activities of rampaging, indiscriminate serial killer Ben are recorded by a willingly complicit documentary team, who eventually become his accomplices and active participants. Ben provides casual commentary on the nature of his work and arbitrary musings on topics of interest to him, such as music or the conditions of low-income housing, and even goes so far as to introduce the documentary crew to his family. But their reckless indulgences soon get the better of them.