Ruth Wilson (The Affair, Jane Eyre) stars in this suspenseful drama inspired by her grandmother's own experience: Alison Wilson thinks she is happily married until her husband of 22 years, novelist and former MI6 officer Alexander "Alec" Wilson (Iain Glen, Game of Thrones, Downton Abbey), dies unexpectedly. Everything she knew about her husband quickly unravels when she discovers she is not the only Mrs. Wilson. Alison is determined to prove the validity of her own marriage, but is instead led into a world of disturbing secrets. 3 episodes, 3 hrs, 1 DVD, SDH.