Physician Cathy Moreland needs time to heal, having recently been diagnosed with bipolar disorder while struggling with a painkiller habit. The little village of Kinnaven promises respite, but after Cathy attempts to get an opiate prescription, things don't go well. When she discovers the body of the local Dr Cosgrove, her sanctuary is shattered. Before long, Cathy is swept up in local gossip about the death. Decades earlier, the cliff where Cosgrove died had been the site of another tragedy, leading some to suspicions about the doctor's demise. But as Cathy determines to learn the truth, she will find herself in grave danger.