Price of a Married Woman: Perfume of Desires

人妻の値段 匂いたつ欲望

Also known as Scent of a Married Woman, Hitozuma no nedan: Nioutatsu yokujou

A lonely guy is stealing garbage and then reading people's sex lives by sniffing and analyzing the waste. When his new neighbors introduce themselves to him, he becomes obsessed with the pretty wife next door. The poor girl is unhappy in her marriage and her husband can't get it up for her. When the neighbor stumbles home blind drunk one night, he reveals to that he's a chemist working on an aphrodisiac and gives our hero a sample to try.