Instruct: Classify a given review into positive or negative sentiment.
Query: Sophomoric characters but good adventure

ESAU begins with the death of Jack's climbing partner but does Jack show any grief? Hell no, he watches what happens with curiosity. Later on, he drinks too much. The love story between Jack and his lover is equally devoid of convincing emotion. Kerr knows how to build plot and suspence - which is no mean feat in itself, but oh his characters are so stick like, the violence is gratuitous - come on, the CIA guy is psychotic?, and there is no subtlity of human interaction or realistic emotions. It reads like a Chinese meal; half an hour later, you're hungry for substance.