Chris Carter meets Freida McFadden in a heart-pounding thriller about exacting revenge on those who have wronged you!

The support group was supposed to be a chance to meet like-minded women and receive therapy in the wake of the terrible crimes committed against them, but when their therapist leaves, will they find other - more deadly - ways to support each other?

Praise for Darren O'Sullivan:

'Heart-stopping' Chris Whitaker

'Sinister and twisted' Lisa Hall

'An oustandingly taut story' Angela Marsons

'Creepy and atmospheric' Louise Jensen

'Clever concept' John Marrs