Mary grew up longing for information about the mother she never knew. Her brother could barely remember her, and their father numbed his pain with drink.

Now aged thirty-seven, Mary has lived in the same house her whole life.

She's never left Belfast. TJ, who's about to turn eighteen, is itching to see more of the world.

But when his mother disappears, TJ begins to realise what he's been taking for granted.

MOTHER MOTHER takes us down the challenging road of Mary's life while following TJ's increasingly desperate search for her, as he begins to discover what has led her to this point.