How to install and run pcsx2 in Ubuntu 15.10 x64

Unable to start pcsx2 on Ubuntu 15.10 64-bit

If you are affected by this bug reported three months ago, like me, you must be wondering how to run pcsx2 in Ubuntu 15.10 64-bit? When I tried to run it all I got was this ugly error:
Gtk-WARNING **: Unable to locate theme engine in module_path: "murrine"