Advertising executive Andrew Fell (Bob Peck) discovers, on Christmas Eve, that his ex-lover has committed suicide. His growing obsession with the circumstances of her death leads him to the first link in a cover-up of food double-dealings, and into danger for himself and his wife (Sharon Duce).

During his investigations, the disturbing and mysterious Jo Scott tempts Andrew with information about the people behind Beth's death, but then subjects him to public harassment. When Andrew later finds her body in his living room, events take a more sinister shift. Finally, after a last-ditch attempt to dispose of some incriminating evidence, he faces two killers who move in on him and his family. At a business conference in Brighton, Andrew, now a wanted man, prepares to jettison his career, his friends, and even his family in a desperate bid for information.