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.
Unfortunately the movie Ondine is not yet available on HBO Max.
| Production | Susie Figgis | Casting |
| Writing | Neil Jordan | Writer |
| Production | Michael Maher | Executive Producer |
| Production | Karen Richards | Line Producer |
| Editing | Tony Lawson | Editor |
| Production | Frank Moiselle | Casting |
| Production | Nuala Moiselle | Casting |
| Camera | Christopher Doyle | Director of Photography |
| Art | Anna Rackard | Production Design |
| Production | Ben Browning | Producer |
| Production | Ned Dowd | Executive Producer |
| Production | Peter Rawlinson | Executive Producer |
| Directing | Neil Jordan | Director |
| Production | Neil Jordan | Producer |
| Sound | Kjartan Sveinsson | Original Music Composer |
| Production | James Flynn | Producer |
| Production | Morgan O'Sullivan | Executive Producer |
| Directing | Jamie Christopher | First Assistant Director |
