By Sue Teddern.
'Sad Girl' refers to what Rachel's mother Lisel once called the painting taken by Nazis from her Berlin home, along with her father and her young twin brother.
After her mother dies, Rachel sets out to find the painting, helped and hindered by her family.
But what did it look like? What was it really called and who took it?
Michael Wernitz/Geoff....Henry Goodman
Uncle Harry....Lee Montague
Sheila/Wernitz Gallery Assistant....Carolyn Pickles