Kim and Mia Timmers were just eleven years old when they were imprisoned in a local psychiatric institution, accused of murdering the man they believed to be responsible for the death of their family. Now, ten years later, they are due for release.Detective Pieter Vos is given cause to re-open the case when the girls disappear. His investigation takes an unexpected turn when it becomes clear that someone is posing as Little Jo - Kim and Mia's other sister - who was killed along with their parents…