Remember the person you sat next to on your first day at school? Still your best friend? Or disappeared from your life for good?

Some friendships fizzle out. Rachel and Clara promised theirs would last for ever.

They met when Rachel was the new girl in class and Clara was the friend everyone wanted. Now in their late twenties Rachel has everything while Clara's life is spiralling further out of control. Then Clara vanishes.

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.