In 1890's London the highest paid private detective is a woman - Rebecca Bowen. After the untimely death of her husband, Lady Montbury holds a series of séances. Unfortunately the spiritual communication she's looking for isn't what she's expecting. The creature that has taken up residence in the manor is described as being like a cage full of fluttering birds. It is accompanied by an overpowering, putrid smell reminiscent of an open grave.