Some friendships fizzle out. Rachel and Clara promised theirs would last forever. They met when Rachel was the new girl in class and Clara was the friend everyone wanted. Instantly, they fell under one another's spell and nothing would be the same again. Now in their late twenties, Rachel has the TV career, the flat and the boyfriend, while Clara's life is spiralling further out of control. Yet despite everything, they remain inextricably bound. Then Clara vanishes. Is it abduction, suicide, or something else altogether? Imagine discovering something about your oldest friend that forces you to question everything you've shared together. The truth is always there. But only if you choose to see it.