Her character, Felicia, is back for the funeral of her teen daughter Georgie (Lindze Letherman), the latest victim of the Text Message Killer.
"It's just so sad," Wagner said to TV Guide about the event. "On my first day back, I cried through 13 scenes and left feeling pretty blue."
Last seen two years ago, Felicia has been away on the flimsiest of excuses (a sick aunt in Texas), and her other daughter, Maxie (Kirsten Storms), is furious about it.
"Maxie tears into Felicia during the eulogy and puts her down for not being present and available," Wagner said. "Felicia runs out of the funeral, and to honor Maxie's feelings, she doesn't even go to the burial. Later, she rushes to Georgie's grave for a few moments, hoping Maxie doesn't see her. It's a terrible way to say goodbye."