Curiosity & the Cat (1999)

A talented novelist lets his imagination run wild when he catches wind of his neighbors’ S&M fetish in the erotic brainteaser Curiosity & the Cat (1999). An arthouse favorite in its native Germany, the film chronicles the mind-bending adventures of Henri (Konstantin Graudus), a man whose voyeuristic impulses help him in his professional life even as they hinder his personal safety (and sanity). With her close-cropped hair, bright-red lingerie, and unorthodox sex habits, Henri’s female neighbor (Natascha Graf) is undoubtedly a treat.