Treacherous strand

A woman's body washes up on a remote beach on the Inishowen Peninsula. Partially-clothed, with a strange tattoo on her thigh, she is identified as Marguerite Etienne, a French woman who has been living in the area. Solicitor Benedicte O'Keeffe is consumed by guilt; Marguerite was her client, and for the second time in her life Ben has failed someone who needed her, with tragic consequences. So when local Sergeant Tom Molloy dismisses Marguerite's death as the suicide of a disturbed and lonely woman, Ben cannot let it lie.