The poison tree

Sinopse

It is the sweltering summer of 1997, and Karen is a straight-laced, straight-A university student. When she meets the impossibly glamorous Biba, a bohemian orphan who lives in a crumbling old mansion in Highgate with her enigmatic brother Rex, she is soon drawn into their world -- but something terrible is about to happen, and someone's going to end up dead.