Instruct: Classify Amazon reviews into positive or negative sentiment
Query: real, rounded characters

This book is a novelization of the play by the same name. And you can see the stageplay - the characters are continually coming and going - and there's stage business - all of which I think shows some stiffness - yet about half way through the novel I was startled at how much the characters were real, rounded - I could just about see them - they ached with life - I was always aware of the stage during the novel - the story itself is rather shocking - it's a mystery novel! - it's all very well done - it's short - and it's very psychological