Miscalculation.

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.