Legacy: Suspicious Minds by Cath Staincliffe.
When the weekly list of unclaimed estates is published probate detectives, ex-police officer Dan and his ruthless sister Rachel, hunt for a body backwards through the family line to find the true heir and get a slice of the fortune.
Dan and Rachel's search for an heir to Petra Oster's estate leads them to investigate events in 1980's East Berlin. Finding several anomalies in Petra's history, it becomes clear that Petra escaped to Britain in an attempt to erase her past. Will their hunt for her heir reveal the truth?
Directed by Nadia Molinari.