A lonely guy is stealing garbage and reading people's sex lives by sniffing and analyzing their waste. When his new neighbors introduce themselves to him, he becomes obsessed with the pretty wife. The poor girl is unhappy in her marriage and her husband can't get it up for her. When his neighbor stumbles home blind drunk one night, he reveals to him that he's a chemist working on an aphrodisiac and gives our hero a sample to try.
Because the main wife is not a slut, the main protagonist only gets to fuck her in the last 20 minutes of the film, and only after she has smelled another married woman's perfume on her husband.