Old wounds are reopened for the Argyle family when a man suddenly turns up after being abroad and claims that the black sheep of the family could not have murdered its tyrannical matriarch.

Alison Steadman, Andrea Lowe, Bryan Dick, Burn Gorman, Camille Coduri, Denis Lawson, Gugu Mbatha-Raw, James Hurran, Jane Seymour, Julian Rhind-Tutt, Juliet Stevenson, Lisa Stansfield, Lisa Stansfield, Michael Feast, Pippa Haywood, Reece Shearsmith, Richard Armitage, Stephanie Leonidas, Tom Riley