A former resident of Chester’s Mill is relocating to the Big Apple next month. Samantha Mathis, whose Under the Dome character met an untimely end last summer, will guest-star in a May episode of Law & Order: SVU, TVLine has learned exclusively.

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Mathis will play the ex-wife of a producer, with whom she’s in a nasty custody battle over their 8-year-old daughter. Worse yet, Mathis’ character is accusing her ex-husband of molesting their daughter.

Law & Order: SVU airs Wednesdays at 9/8c on NBC.