If you still need convincing that Joe Sarno was the greatest non-explicit adult filmmaker working throughout the '60s and '70s, though he simultaneously dabbled in the hardcore end of the industry as well, then this routinely overlooked little gem should go a long way. Essentially a sexed-up retelling of the Jekyll and Hyde story, it benefits enormously from a rib-tickling performance by perfect blonde "Veronica Parrish" (real name : Mary Mendum, though better known to sex film fans as "Rebecca Brooke") as a mousy lady scientist who accidentally stumbles upon a potion that turns her into an irresistible not to mention insatiable seductress. Shot as professionally as just about any Hollywood picture of the period, this is a truly fun sex farce with jokes that hit the mark more often than they miss. Added enjoyment for porn mavens comes from the employment of many familiar triple X faces and bodies in supporting roles, including legendary Jennifer Welles, Eric Edwards, Kristine Heller (whose tragic life inspired Paul Thomas' terrific AWAKENING) and Sonny Landham as the dashing millionaire who wants to take bountiful Becky away from all those wild orgies and make an honest woman out of her.