Frank and Barny are agents of the PBI - Pornographic Bureau of Investigation, sent by Chief Rank, Head of Vice, L.A. District, to go down on the dirty crime spots of Hollywood. Mousie's Hot Shoppe is an adult bookstore where the owner is as much titillated as his customers by the material on sale. The agents are surprised to uncover that Mousie knows Chief Rank all too well, but it comes handy as he is willing to be an informer. So, the agents "discover" the Travelling House of Pleasure, a door-to-door delivery service of of Eastern Delights, the Good Time girls.