Ivano is a wheelchair-bound man with some strange perversions. He gets his sexual kicks by spying on Arturo, their tenant in the apartment next-door and forcing his sexy accomplice Olga to watch as well. To increase his perverse thrill, Ivano persuades Olga to seduce Arturo and to have sex him as he watches. Unfortunately for all involved, the sex game starts to get very deadly.
A gorgeous housewife who plots mischievous revenge against her philandering husband, a powerful businessman. Gioia (Fenech may be a stunner, but that doesn’t stop her husband Gianni (Alberto Lionello) from attempting to seduce any woman who crosses his path. Upon deciding that a taste of his own medicine may serve Gianni well, lusty Gioia recruits handsome stranger Patrizio (Ray Lovelock) in teaching her husband that it pays to remain faithful.
Young engineer Francesco Ferraro (Enzo Bottesini) is sent to Smeraldo Island in the Seychelles to oversee the tests necessary to dig a silver mine. But Francesco must also find out what happened to his predecessor, vanished without trace. The island seems to be an Eden on Earth, and the native girls freely explore the joys of sex, but there is something in the dark working against Francesco, and a mysterious accident disables his delicate equipment.