Next of Kin follows whip-smart GP Mona Shirani who lives in London with political lobbyist husband Guy Harcourt. Family life is shattered when Mona's brother is brutally murdered whilst working for a medical charity abroad. As the death brings buried secrets to light, Mona's family finds itself under suspicion, each drawn deep into a tangle of betrayal and conspiracy as they try to protect their loved ones and careers. Mona finds herself facing the ultimate dilemma: how far would you go to keep your family safe?