'War Horse' actress Emily Watson will star in an upcoming TV drama about the London 7/7 suicide attacks.
Suicide bombers conducted a series of attacks on London Underground trains and a double-decker bus, killing 52 people and injuring 700 on 7 July, 2005.
Watson, 47, will play Julie Nicholson, whose daughter, Jenny, was killed at Edgware Road underground station in the bombings, reported BBC.
A Song For Jenny is based on Nicholson's own account of the tragedy and will be written by playwright Frank McGuinness.
It will be broadcast in July 2015, marking the 10th anniversary of the attacks.
Nicholson told the Radio Times she was delighted her memoir had inspired the re-telling of Jenny's story for TV.
"I believe it is in safe hands and I have long admired and respected the work of Frank McGuinness," she said.
The bombings - the first time British suicide bombers attacked civilians in their own country - inflicted the greatest loss of life in a UK terror attack since the Lockerbie bombing in 1988.
Jenny was one of 52 people killed when four attackers carried out the bombings on London's transport system on 7 July 2005.'Universal themes'
Nicholson later gave up her job as a vicar because she was unable to forgive those who had taken her daughter's life.
Watson, who won a Bafta in 2011 for her performance in the ITV Fred West drama Appropriate Adult, said she hoped to do justice to the events of that day.
"Although daunted by the task ahead, as a Londoner who was there on 7/7, I feel honoured to be part of the team asked to tell this compelling story," she said.
"I hope we can do it justice," added the actress.
Watson will portray Nicholson as she learns about the bombings, discovers her daughter is missing, and learns the news that Jenny is among the dead.
BBC One controller Charlotte Moore said A Song For Jenny will be "a fitting tribute to those who lost their lives in the tragedy of the 7/7 London bombings".
"But it will also be a very personal story, exploring universal themes of grief, loss and forgiveness through one mother's struggle to reconcile her feelings with her faith".