In an isolated house on the New South Wales coast, Ruth, a widow whose sons have flown the nest, lives alone. Until one day a stranger bowls up, announcing that she's Frida, sent to be Ruth's carer.

At first, Ruth welcomes Frida's vigorous presence and her willingness to hear Ruth's tales of growing up in Fiji. She even helps reunite Ruth with a childhood sweetheart. But why does Ruth sense a tiger prowling through the house at night? Is she losing her wits? Can she trust the enigmatic Frida? And how far can she trust herself?