A former journalist, Alex Marwood went even further to the dark side when her Edgar award-winning crime novel, The Wicked Girls, was published in 2012. The Killer Next Door, described by Stephen King as “scary as hell”, won the Macavity award for best mystery 2014. Both books have been sold to film. The Darkest Secret, published in June, was described by the New York Times as “plot twisting, mind-altering and monstrously funny”.