Plot summary
When Goren and Eames search for a jewel thief, Ella Miyazaki ( Grace Hsu ), who murdered her accomplice, they discover that the clever larcenies are the brainchild of her lover, Nicole Wallace ( Olivia d'Abo ), Goren's reappearing nemesis. As the detectives delve into the relationship between the two women, they uncover an attempt to cause the death of Wallace's ex-husband Richard Joseph Paul ( Gavin Haynes ), when Nicole perceived him as a threat to revealing her past. The detectives uncover evidence that Nicole gave birth to a daughter in Australia whom she murdered at the age of three on an island on the Great Barrier Reef. They convince Miyazaki to assist them to trap Nicole, but Nicole murders her and escapes.
Credits
Adapted from Wikipedia contributors, Law & Order: Criminal Intent season 4. HTML formatting and reference markers removed.