Louise Hart has endured a great deal of pain from her callous husband Paul, but one cold December night in 1959 she can take no more. She and her son Davey escape their Coventry high-rise flat and flee to Tanglewood, the dilapidated Ivyclad mansion where her mother Dolly runs an animal sanctuary. Miserable and frightened, Louise longs to turn her back on the past, and create a happy new life for Davey. But Paul is in trouble with men more dangerous than himself. Unable to pay his debts, he blackmails Louise and those who love her, keeping a shadowy presence in their lives. Even the arrival of Charlie Fox, a stranger who becomes a true friend, cannot guarantee that the future will be safe...