A glimpse into the past reveals the people who changed Lily's life, and explains her attachment to the skull. Heston meets an old friend from medical school and is gobsmacked when this friend reveals a connection to someone at the Mill. Ruth thinks like Michelle and makes a daring move during art class.
| Creator | Chris Murray |
|---|---|
| Actor | Elisabeth Dermot Walsh, Dex Lee, Adrian Lewis Morgan |
| Country | United Kingdom, Mexico, South Korea |
| Production | BBC |