A thriller serial in six parts by Bill Craig
starring William Lucas as Eddie Prior, Claire Nielson as Liz Elliot, Peter Copley as Cadwaller, John Grieve as Shaw, Callum Mill as Sgt. Forbes
From Scotland

When Eddie Prior comes to a Scottish island in search of his allegedly unfaithful wife Helen, he finds that she's been drowned trying to reach the mainland.
Combing the shore for her body, he meets Spinner, an angler with a strange catch-a drowned man whose body the tide takes back.
Meanwhile, his sister-in-law Liz arrives to find Helen's cottage ransacked. The local police sergeant, Forbes, suspects a tinker named Shaw. But Eddie tells Liz that he had seen the drowned man before - in the cottage the previous night.