How do you move on if the past won’t let you go?

The loss of her mother has left Kal McKenzie with too many unanswered questions. But while clearing out Elena’s art studio, Kal finds a drawer packed with postcards, each bearing an identical one-line message from a Canadian gallery owner called Susannah Gillespie. Who is this woman and what does she know about Elena’s past?

Desperate to know more, Kal travels with her toddler, Finn, to Susannah’s isolated home on a remote British Columbian island, a place of killer whales and storms. But as bad weather set in, Kal quickly realises she has made a big mistake. The handsome and enigmatic Susannah refuses to talk about the past, and as Kal struggles to piece together what happened between her mother and this woman back in the 1970s, Susannah’s behaviour grows more and more erratic. Most worrying of all, Susannah is becoming increasingly preoccupied with little Finn ...