The story of a young woman haunted by the memory of her dead husband, who has not left her home in three years. Suddenly she is being stalked by her husband's doppelgänger and someone is attempting to kill her. With her friends help Em searches to solve the question of the mystery man. The clues lead from California to Scotland, as the mystery begins to unravel Em realises she is romantically attracted to Stefan but knows she must solve the mystery of how Peter died and begin to heal emotionally. But will she find the answer before the killer strikes for the last time?