I love this genre so think I will add to the list!!
Vena Cork - Thorn, Art of Dying, Green Eye (need to read in order!)
Laura Wilson - Don't know why she is not more widely read
Laura Lippman Although the Tess Monaghan books are good the books outside that series are even better, What the Dead Know, Every Secret Thing, The Power of Three
Tana French - In The Woods, and The Likeness.
Wonderful
Gillian Flynn - Sharp Objects was an amazing debut, she has another book out this year
Gillian White - Superb writer, Copycat and The Witches Cradle are favourites of mine
Carol Goodman - Gripping stories, ful of myth and legend, unputdownable.
Sophie Hannah - Love her work
Sarah Rayne - Real page turners, some of hers have a touch of the supernatural about them
Catriona Mcpherson - Great 'by accident' detective and great humour in these books
Obviously anything by Ruth Rendell, Barbara Vine or Val Mcdermid