An American actress arrives in London to find herself the target of a ruthless assassin in this compelling standalone thriller. Actress Adelaide Banks is swapping her native New York for London to spend Christmas with her widowed Aunt Rose. Rose wrote in her note that she was off to Paris for a few days and would be back in time for Addy's arrival. But when Addy reaches Rose's Knightsbridge address, no one's home, and she has...