The tension between Orla and Ruth explodes in Tuesday's Fair City on RTÉ One.
Since Orla and her son Junior moved in with Orla's partner Paul and his daughter Ruth, things have gone from bad to worse - Ruth making it as hard as possible for Orla and bullying Junior behind his mother's back.
The showdown begins on Tuesday night when Orla has to look after Ruth and brings her along to a meeting.
Embarrassment ensues.
Later, things come to a head between them - and Ruth resorts to saying horrible things about Orla's little boy.
"He's a whingeing, little wimp," she says. "He should've just died when he got sick and saved us all the hassle."
Livid, Orla slaps Ruth across the face.
"Both in shock, Ruth runs off and Orla is left in turmoil," says the Fair City team. "Is she the wicked stepmother from Hell? And will Ruth tell Paul?
"Distraught, Orla confides in Carol, worried that she's reached a point of no return with Ruth and that she has dragged Junior into a home that he's not happy in, when all she wanted was for this situation to work. But how can it when she's getting no support from Paul?"
Fans can find out what happens next on Tuesday on RTÉ One at 8:00pm.
Fair City airs on RTÉ One on Sundays and Tuesdays to Thursdays.
