The Half Murders - Hardcoverby Brandon McNulty (Author) JEKYLL & HYDE meets THE HAUNTING OF HILL HOUSE in this dark and twisting thriller from the author of Bad Parts. Kelly O'Neill hates many things her dead end job, her passionless marriage, her strained relationship with her daughter but none more than the month of September. Each year, a sinister letter arrives in her mailbox, a chilling reminder of her past misdeeds sent by a grieving mother. But this year, as the message