Serena Southerlyn in"Law & Order."

Elisabeth Rohm opens up about Law & Order

Elisabeth Rohm played A.D.A.

Serena Southerlyn on “Law & Order” from 2001 until 2005.

Elisabeth Röhm smiling

“I love this show.

It’s smart TV; it’s responsible TV.

Again, it’s also ripped from the headlines and all of that.

Elisabeth Röhm smiling in 2003

“Girl in Room 13"debuts September 17 on Lifetime.