Patrick Scahill

Kate and Joe have longed to be parents and are considering in vitro options... when Danica, a child Kate gave up 17 years ago, appears on Facebook. Danica comes to live with them, but she's not their real child. She's an impostor who will do anything, even kill, to get the mother's love she never had.

Nuala Ni Bhraonáin, electronics whiz, is a stylish woman about town in Dublin of 1981. She's invented the 'Reilly 9000', the world's first calculator with a square root function. Donnchadh is her flatmate and an egomaniacal Gaeilgóir poet with an unfortunate penchant for plagiarism -- and Rita, one of Nuala's workmates, makes the mistake of getting between Donnchadh and the top prize in Slógadh.