It only takes a day for your whole life to unravel...

As Jessica Walsh sits in a café, a stranger tells her a story that feels alarmingly familiar.

She has a sister who's an addict - just like Jessica. A father growing desperate to help. There's one crucial difference, though: Jess knows her dad would never resort to violence to fix the 'problem.'

Later that morning, Jess sees voicemails from her sister: Vicky needs her. Now.

When Jess gets home, Vicky is gone, her father insisting it's all part of a plan to get her clean - but Jess can't forget that woman from the café, the strange coincidence of their meeting. It had comforted her earlier.

Now it feels like a warning.

Why readers love CHARLIE GALLAGHER
***** 'Addictive, unputdownable'
***** 'Totally gripped me'
***** 'Thrilling, with plenty of twists'
***** 'Excellent! The ending was just gut-wrenching.'