All Saints - Season 6 Episode 4 Broken English

Charlotte gains the trust of an elderly Polish man brought in and through a translator, discovers the horrific living conditions in the boarding house where he is staying. Mitch, who is again drinking heavily, lashes out at Terri and hits her. The next morning he wakes up hungover to find that she has gone. Arriving at the hospital, wanting to set things right, Mitch discovers that Terri had never arrived. Panicked at the thought of losing her, he tries to track her down and finds her at her sister Margaret's house, where he lashes out again, this time at Margaret's husband. Now both Mitch and Terri know that something isn't right, so Mitch undergoes a CT scan. And the news isn't good.