It's separated into four categories ("studios") which include various fetishes in addition to tickling – see the below description for an overview of the different categories.
Except for the Foot Fetish category, in nearly all of the scenes the actress(es) are fully restrained and tickled in various ways and at various intensities – most of them are screeching from the ticklish sensations and trying to escape the bonds, without the tickler(s) showing mercy.