The year is 2003, and Crowford Castle is struggling to attract visitors. Winifred Croft leads guided tours, telling people about the castle's history, but the cracks are starting to show and soon the entire site could be sold. Then, one night, a shocking accident seems to kill Winifred, leaving no trace of her body. The year is 1648, and the English Civil War is in full swing. Besieged by the enemy, Crowford Castle is on the verge of collapse...