What happens if you've done something terrible? But you can't remember
what. And you don't know how to put it right ...

When Carl opens his eyes on the banks of a lake, his brother is being
zipped into a body bag. What happened in the water? He can't
remember.

And when he glimpses a beautiful girl he thinks he recognises, she
runs away.Suddenly he knows he must find her - because together
they must face the truth before it drowns them.