The Inventor's Granddaughter.

Forensic investigator Emmanuelle Jones causes an anomaly when she tries to change the past. But before she does so she meets a famous artist, namely Leonardo da Vinci who persuades her to sit for him; after which she sets out to catch a murderer from the future.
In part two Emmanuelle continues on her journey back and forth through time once more on the trail of the ever elusive murderer and she meets the artist once more and her double with her robot boyfriend. On her return she manages to settle an old score after they meet two mysterious ladies named Amy and Bella Cauldar .