The Tides are a family with dark secrets. Haunted by the events of one tragic day ten years ago, they are each, in their own way, struggling to move forwards with their lives. Dora, the youngest daughter, lives in a ramshackle East End warehouse with her artist boyfriend Dan. Dora is doing a good job of skating across the surface of her life - but when she discovers she is pregnant the news leaves her shaken and staring back at the darkness of a long-held guilt. Returning to Clifftops, the rambling family house perched high on the Dorset coastline, Dora must confront her past. Clifftops hasn't changed in years and moving through its rooms and gardens, Dora can still feel the echo of that terrible summer's day when life changed forever for the Tides. As Dora begins her search for clues surrounding the events of that fateful day, she comes to realise that the path to redemption may rest with her troubled sister, Cassie. If Dora can unlock the secrets Cassie swore she would take to her grave, just maybe she will have a shot at salvation. But can long-held secrets ever really be forgiven? And even if you do manage to forgive and forget, how do you ever allow yourself to truly love again?