Looks to me like one of the narrow-leaved varieties of Codiaeum
variegatum, commonly called "Croton." The plants come in a whole
rainbow of colors. The spotted one is a mutation (sport) of one with
more normally-colored leaves.

Spots and stripes on leaves can be a mutation, a virus, evidence of
chimaera, or damage from a pest or insect. In this case, I think it's
genetic.

Have alook at:
http://www.itfgs.org/htm/croton.htm

M. Reed

FDM+ wrote:
I knew that's due to a virus, but I'd be wrong.
Anyway, someone can identify the plant?

Thank you,
Fabrizio