How do you investigate someone who doesn’t exist? That was the question that gnawed at me in February 2025, when I first decided to look into the death of Tracey Turnell. The heavily decomposed corpse of Tracey was discovered being pushed by her 77-year-old mother Joan through the middle of Walthamstow Market on 7 November 2023. In the aftermath, police discovered that Tracey had no phone, no job, no GP registration, no passport, no friends or romantic partners.