Dramatically Change Look & Feel for just one page on site

Anyone have any idea how to replicate https://watchwigs.com/ in WordPress? My client loves how the video filtering on the right (and the main image) changes depending on what is selected on the left. I have spent several hours and looked into using multiple themes on one site, and multiple sliders on one site, but don’t feel like i am even close to a solution. The client wants this functionality (not on the main page of the site, but on a sub page) and wants it to be unique from the rest of the site which is a straight forward WP site using a Genesis theme (Executive Pro) Thanks.