Coronation Street 's Sam Blakeman seemed to spiral into drugs on Wednesday night's episode. The schoolboy, played by Jude Riordan, has been left unable to concentrate on his schoolwork amid intense revision for his GCSEs. A few weeks ago, he had worked out that fellow teenager Will Driscoll, who is in the year above him, had been having an affair with their teacher Megan Walsh (Beth Nixon), and she quickly issued with him a chilling threat to keep everything a secret. But as the latest episode