As the velvet cloak of moonlight settled over the ruined towers of Raglan Castle, the shadows beneath them stirred ... When newly widowed Tess visits Raglan Castle, she experiences an extraordinary vision that transports her to seventeenth-century Wales and a castle on the brink of a siege. Even when Tess leaves Raglan to return to Merrick Court, her late husband's home, the strange dreams continue as her life becomes increasingly intertwined with the past. And when the new owner of the estate arrives - New Zealander Josh Owens - the parallels become even more obvious. But perhaps the visions aren't just trying to tell their own story, maybe they're also giving a warning ...