Starring Kenna Valentina What happened to Kenna Santiago? The mystery has finally been solved as to what became of the young reporter who disappeared in 2009. As recorded on a videotape that has come to light, Kenna was the test subject for a new invention: an aphrodisiac that increases the human female capacity to insane levels. How much can she endure? The film makes it very clear. Test Subject 13 is found footage that looks and feels like a grimy artifact, artificially aged and distressed and enhanced with an array of sound tracks that takes the viewer through the roller coaster process of pleasure without cease or mercy.