Featured image – Parallax Effect

Hi,

i’m looking for some plugin or manual to make featured image on page with parallax effect. Tried many plugins, but so far no good.
I don’t want to change a theme and i want to use the parallax only on the image.

If someone could help me or point to the proper direction, i would appreciate it.

Thank you in advance.
Marcel

The page I need help with: [log in to see the link]