Catrin and Rachel had been best friends since childhood, growing up in a close knit community on the remote Falkland Islands. But their friendship ended horrifically, when Catrin's sons were killed whilst in Rachel's care. Three years on, Catrin still struggles to rid herself of the bitter hatred that poisons her every waking hour - hatred for her own existence, and hatred for Rachel's. So when a child goes missing and the islanders unite in the search, the two women are forced to confront their past. And Catrin's torment turns even more towards thoughts of revenge . . .