Elio Petri - L’assassino AKA The Ladykiller of Rome (1961)

Quote:
The film is a frequently clever examination of a cynical social climber who finds himself in trouble. Arrested at his home and complete with a phoney alibi to cover his infidelity, our antique-dealer hero soon learns that he’s under suspicion for having murdered his ex-lover. Unfortunately for him, he’s not noted for his loving-kindness (he takes financial advantage of the desperate as he relieves them of their valuables) and is, romantically speaking, a cad, having exploited the soon-to-be-deceased lover for career purposes while romancing a younger bubblehead under her nose. All of this inhumanity seems to point to his being the killer, plunging him into a Kafka-lite nightmare that forces him to face up to his own brutishness.