Dr. Gemma Foster (Suranne Jones, Coronation Street) suspects her husband, Simon (Bertie Carvel, Babylon), of having an affair and decides to find out if he is. "A brilliant and gripping portrait of a marriage slowly being poisoned" (Guardian), this critically acclaimed British drama series was a ratings hit in England. The dread builds as Foster finds a blonde hair on Simon's scarf, starts investigating her husband's love life and financial affairs, and holds an awkward dinner party. 5 episodes, 5 hrs, 2 DVDs.