Cynthia Owen (born Cynthia Murphy) claims that she and her siblings was subjected to Satanic ritual abuse - by her parents and at least nine other people.
Her account has been supported by her psychologist.
The Cynthia Owen case involves the Dalkey "house of horrors" near Dublin, in Ireland.
Cynthia Owen: 'My mother was evil' | The Guardian
The late Peter Murphy who was allegedly part of satanic child abuse group led by a policeman.
In the Dalkey case, no one was held to account over the murder of a baby, called Noleen, stabbed to death in 1973.
Cynthia Owen named 12 men.
One brother, Martin,committed suicide in 1995 after revealing he had been sodomised in his family home,.
Another brother, Michael, disappeared in 2002.
Sister Theresa committed suicide shortly after the discovery of his body in 2005.
Theresa's detailed 37-paged suicide note corroborated Cynthia's account.
A friend of Theresa's testified at the trial, stating that Theresa had spoken to him at length about her sexual abuse in childhood.
"Of the six we photographed ... one is working directly with children...
"A further member of the 'ring' is a taxi driver who regularly ferries children in his car and the last is a former council worker and avid church goer."