Dark is When the Devil Comes is a feminist kidnap horror thriller - imagine The Last House on Needless Street meets Carrie.
Hazel, a twenty-nine-year-old mycologist - someone who studies mushrooms - swallows her shame and returns to her parent''s home after a traumatic divorce. To start rebuilding, she takes the plunge and calls her estranged sister, Cathy, and organises to meet up; she also bumps into Suzie, an old school friend with whom she shares a terrible childhood secret.
But then Hazel meets Andrew, who claims to have rare, hallucinogenic mushrooms growing in his old farmhouse. Lured out into the wilderness by curiosity and no little professional ambition, Hazel is trapped by Andrew, shut in the basement with no help for miles around.
As Cathy and Suzie desperately begin the search for Hazel, Cathy starts to feel that something darker and even more terrifying than Andrew resides in that farmhouse. But is the power living in the dark with her or . . . much, much closer.