Arabella Lane, senior executive at a children's publisher, is found dead in the Thames on a frosty winter's morning after the office Christmas party. No one is sure whether she jumped or was pushed. The one person who may know the truth is the newest employee at Parker & Lane - the office temp, Eleanor. Eleanor has travelled to London to escape the repercussions of her traumatic childhood in outback Australia, but now tragedy seems to follow her wherever she goes. To her horror, she has no memory of the crucial hours leading up to Arabella's death - memory that will either incriminate or absolve her. As Eleanor desperately tries to remember her missing hours and uncover the events of that fateful night, her own extended family is dragged further into the dark, terrifying terrain of blame, suspicion and guilt. Caught in a crossfire of accusations, Eleanor fears she can't even trust herself, let alone the people around her. And soon, she'll find herself in a race against time to find out just what happened that night - and discover just how deadly some secrets can be.