'Helltown: The Untold Story of a Serial Killer on Cape Cod' delves into the chilling true crime genre, meticulously crafted by acclaimed author Casey Sherman. This gripping narrative unravels the harrowing tale of Tony Costa, a notorious serial killer whose gruesome acts terrorised Cape Cod in the late 1960s. Sherman’s investigative prowess shines as he explores themes of darkness, deception, and the fragile veneer of normalcy. With a blend of historical context and psychological insight, 'Helltown' offers a compelling examination of a community's nightmare, making it an essential read for true crime aficionados and history buffs alike.