All four episodes of the British drama which follows siblings Daniel (Robert James-Collier), Sian (Gaynor Faye) and Chloe (Jemima Rooper), whose lives are turned upside down after the sudden and unexpected death of their father, Dennis (Larry Lamb). When they learn that they have all been written out of his will and that he left everything to a mysterious woman called Susan (Samantha Bond), they begin to question whether his death was an accident or if it was in fact murder...