There are three key ingredients that make an excellent giallo production. First, you need a drop-dead-gorgeous starlet that will readily take at least two showers in front of the camera, naked of course, and during the course of the film will not shy away from further revealing her “acting skills”. Second, you need a good amount of red paint, preferably not the Ferrari-red type. And third, you need a relatively good mystery story complimented with a few catchy tunes to bring that extra bit of chill. Now imagine that you throw in the mix one of the sexiest European stars to ever grace the exploitation genre canvas-Edwige Fenech, a legendary Italian director-Sergio Martino, and a script based on a short story by celebrated writer Edgar Alan Poe…and there you have it…Il Tuo vizio e una stanza chiusa e solo ion e ho la chiave a.k.a Your Vice is a Locked Room and Only I have the Key (1972), a spectacular giallo production that mixes all the right ingredients with just about the right amount of style we pointed out above.