Mabel O'Doherty is known in the Irish neighborhood where she lives as Crazy Mabel, accused of killing her mother when she was twelve years old. But Mabel has secrets buried inside her head that a killer doesn't want anyone to know. Abandoned by all but her friend Molly, Mabel is ready to fight for her sanity and to clear her name.

Michael O'Brian has spent years in England and returns home to find life as he knew it had changed. As he embraces this new life, he is thrown into a deadly web of lies and murder. Can he come to terms with his guilty in time to save the only woman he has ever loved before a killer silences her for good?