Plot summary
As Detective Mike Logan joins the Major Case team, detectives Goren and Eames investigate the death of a city health inspector Larry Chapel ( Boris McGiver ). They question victim's brother Evan Chapel, ( Kevin J. O'Connor ), a recently widowed medical examiner with a young daughter Gwen, and discover he is romantically involved with the re-surfaced Nicole Wallace ( Olivia d'Abo ). They uncover a complex web of intrigue where after Gwen received a $5 million medical payout, the brothers killed Evan's wife and planned to kill Gwen to get the money. Meanwhile, Nichole had become to view Gwen as her surrogate daughter but when she realized their conspiracy, she left Gwen with an aunt and gave Evan up to he police before she again disappeared.
Credits
Adapted from Wikipedia contributors, Law & Order: Criminal Intent season 5. HTML formatting and reference markers removed.