Thirty years ago, the Rose of Nevada vanished at sea, along with its crew.  When it suddenly reappears in the harbour of a remote Cornish fishing village, it feels like an auspicious sign for the future of the struggling village, if only the ship sails again.  Mark Jenkins, the one-of-a-kind Cornish auteur, director of the break-through Bait and Enys Men, brings his distinct technique to a mysterious tale of time-travelling and identity.