A lawyer receives a note telling him that he'll be dead in 48 hours - and Scotland Yard must work fast to uncover the serial killer known as 'The Ringer'. A lawyer receives a note telling him that he'll be dead in 48 hours - and Scotland Yard must work fast to uncover the serial killer known as 'The Ringer'. A lawyer receives a note telling him that he'll be dead in 48 hours - and Scotland Yard must work fast to uncover the serial killer known as 'The Ringer'. A lawyer receives a note telling him that he'll be dead in 48 hours - and Scotland Yard must work fast to uncover the serial killer known as 'The Ringer'.