“killer katrine” opens with a sun-kissed blonde on satin sheets, sunlight dancing across her bare skin. In “killer katrine” she spreads warmed oil over her breasts, nipples hardening under her palms. The camera in “killer katrine” worships every slick motion as she circles lower, parting her thighs for the lens. “killer katrine” records her fingers slipping inside, breath hitching, until she grabs a vibrating wand. The intensity of “killer katrine” peaks when she rides the toy to a screaming finish, legs trembling in pure ecstasy.