Facing her 100th birthday Roseanne McNulty has decided to record her past from inside a mental hospital, and while the facility is scheduled to close, Dr. Grene takes an interest in Roseanne to determine if she is capable of reentering society, but when a document -- written by a local priest -- surfaces, it offers a history different from the one Roseanne offers.

Rose McNulty, a once vibrant and lively beauty, has spent the majority of her adult life confined to a mental hospital in Ireland. When new chief psychiatrist Dr. Grene arrives, he takes a keen interest in Rose. He finds a hidden memoir, written over the course of decades by Rose, that unravels the mystery of her wartime love, incarceration, and the tale of her passionate, yet tortured, life.