Holly is a struggling writer who does random product testing and reviews to make ends meet. When she faints in front of her sexy UPS guy, Marv, he comes to her rescue. He's curious about her product testing, and together they open the nondescript brown box containing her latest assignment: the Sex-O-Matic, a machine that guarantees its user multiple orgasms. Being the gentleman he is, Marv naturally offers to help Holly test it. How can she resist?