Poltergeist The Legacy S2 Ep 2 - F2F Morphs

Season 2 Episode 2 Black Widow
Karen, who has dark hair, uses the forms of two different blondes to drain a sheriff's deputy and a truck driver. She later appears as Julia (and changes back to herself) while in bed with Nick; she has fallen for him and claims that she wouldn't hurt him. Then she tries to seduce Derek Rayne in the guise of one of his former lovers Isobelle.