The girl in the photograph

"On coming across a beautiful photograph of her dead mother, quite unlike the dour woman she remembers, Allegra O'Riordan of Chicago flies to Los Angeles to find out who she really was and learns of an event that changed the mother's life forever. By the author of All Done with Mirrors."@en
"On coming across a beautiful photograph of her dead mother, quite unlike the dour woman she remembers, Allegra O'Riordan of Chicago flies to Los Angeles to find out who she really was and learns of an event that changed the mother's life forever. By the author of All Done with Mirrors."
"When she unearths a photograph of her mother--who had died when she was a child--inscribed to an unknown man, an Irish-American woman returns to Los Angeles to discover who her mother really was, only to meet with lies and deceptions."@en