Gail Platt , who’s been a mainstay of Coronation Street since 1974, is leaving the show on Christmas Day - and glimpses of her final moments on the cobbles are alarming. In a photo from the festive special, Gail - played by the lauded Helen Worth , 73 - seems to have lost her home to a fire. The large Platt household is shown with black ash stains on the brickwork, and all windows boarded up. In the snap from the Daily Mail the house looks empty and abandoned, with no suggestion of how Gail or