Serial: This British Life investigates a real life unsolved case from 1983 that's haunted both the accuser and alleged perpetrator ever since. Just after a showing of the film ET at the Macclesfield Majestic cinema, Geoff Lloyd drew a picture. What happens next defies belief. As Annabel uncovers the evidence and interviews those involved, you can follow the startling revelations and sometimes contradictory clues until you make your own conclusions as to who is the guilty party in this riveting case.