What TV movie where Stephanie Powers is a muse for an artist then has a child of her own that is the artist?

Possibly (Deceptions) which deals with two women assuming each other"s identity, a college student and an Italian Noblewoman both played by Powers. Gina Lollobrigida had a supportive role as an Italian Princess.l One character is murdered by gangsters and the other gal assumes her role in the concluding fracas. No I have not seen it. Do not confuse with Electra Powers, agent of well, it didn"t have a name back then but was joint G-2 and Naval Intelligence mission-X.