On the coast of Cork, Syracuse is a divorced fisherman who has stopped drinking. His precocious daughter Annie has failing kidneys. One day, he finds a nearly-drowned young woman in his net; she calls herself Ondine and wants no one to see her. He puts her up in an isolated cottage that was his mother's. Annie discovers Ondine's presence and believes she is a selkie, a seal that turns human while on land. Syracuse is afraid to hope again.
Colin Farrell
as Syracuse
Alicja Bachleda-Curuś
as Ondine
Dervla Kirwan
as Maura
Alison Barry
as Annie
Marion O'Dwyer
as Nurse - Dialysis
Tony Curran
as Alex
Mary O'Shea
as Fish Co Op Worker
Gemma Reeves
as Draper's Shop Tracy
Stephen Rea
as Priest
Norma Sheahan
as Librarian
Brendan McCormack
as Fishery Board George
Emil Hostina
as Vladic
