January 1790. Isabella Rae takes on a position at Cauldhame Manse following the death of the minister, Gideon Kerr. The Manse has fallen into decay and disrepair, but Isabella's offers of help are met with hostility by the housekeeper, Mrs Tait.

Isabella is determined to set affairs at the Manse in order, but soon realises that there are sinister forces at play, who do not want her there. Candles are extinguished without warning, doors slam and ice blooms on surfaces, revealing strange words. And another haunting is occurring too: candles glow, the air becomes fragment and, on occasion, Isabella feels a glimmer of hope.

With two forces fighting for the spirit of the Manse, can Isabella survive the terrors that unfold - and protect those still living?