1913. Unmarried sisters Nellie and Vivian Marsh live an
impoverished existence in a tiny cottage on the banks of the Little
River in Suffolk. Their life is quiet and predictable, until a
sudden flood throws up a strange fish on their doorstep and a
travelling man who will change them forever. 1939.
Eighteen-year-old Birdie Farr is working as a barmaid in the family
pub in London. When she realises she is pregnant she turns to her
mother Nellie, who asks her sister to arrange an adoption for
Birdie's new born daughter. But as the years pass Birdie discovers
she cannot escape the Marsh sisters' shadowy past - and her own
troubling obsession with finding her lost daughter will have deep
consequences for all of them . . .