Which PLUGIN?

Hi every one!
I am new with WordPress and I am looking for a solution.
I am creating a web page for an online shop. The idea is to have on the main page with pictures of each product, but if you click on it: a box appeares with a gallery with pictures of that product (a gallery) and description of it along with a contact field on the left. You can turn of the box with an x in a right corner.
I find this idea good for preventing a dead end in a page. I couldn’t find any plug-in to make something like that, so I am asking here, if there is one to do this, or a different opiton?

Could anyone help?