After a tragic accident leaves Tamara alone on the most westerly tip of Ireland, she begins an affair with a charismatic meteorologist named Niall. At first her romance is filled with passionate secrecy, but when Niall's younger brother, Kieran, disappears after a bicycle race, Niall, unable to shake the idea that he may be to blame, slowly falls into despondency. Distraught and abandoned after their decade-long relationship, Tamara decides she has no option but to leave.