Next week on "Law & Order: Special Victims Unit", Hilary guest stars as a young mother made a prime suspect when her young child goes missing. Gail O'Grady ("Boston Legal") will also guest star as Duff's mom who reports on the missing of her grandchild.
When Ruth Walker reported that her two year-old granddaughter, Sierra Walker, is missing, Detectives Olivia Benson and Elliot Stabler investigate. After rounds of interrogation and a failed Amber Alert, Benson and Stabler believe that the prime suspect is none other than Sierra's young and irresponsible mother, Ashlee Walker.
Called "Selfish", the episode airs on Tuesday, April 28. Duff filmed he scene back in March in New York City's East Village. According to Just Jared, there will be a scene where she is seen with wet T-shirt and "drunk and partying in Cabo".