Sisters Jo and Caroline have had a difficult relationship growing up.
When their father dies, his will raises more questions than answers.
It's clear he's been hiding something.
But Jo and Caroline have secrets too.
And theirs might turn out to be even more lethal...
Praise for Nikki Smith's debut, ALL IN HER HEAD
'Tense and moving' Harriet Tyce
'A clever and emotionally charged debut' Lesley Kara
'Brilliantly written with plenty of surprises along the way' T M Logan
'Haunting and compelling . . . it had me immediately gripped' Karen Hamilton
'A twist that will make you feel like you've been hit by an express train' S Magazine
'Clever, impressive and instantly gripping . . . Surprising twists will make your head spin in the build up to a moving yet chilling finale' Daily Express
'As soon as you've finished, you'll be dying to start again to try and spot the clues you've missed' Woman's Weekly