在这部悬崖上的谋杀爱情/犯罪/悬疑片中,博比·琼斯正在打高尔夫，一记奇怪的右曲球，他把球打下了悬崖的边缘。他的球找不到了，但在悬崖下的岩石上他发现一个人蜷曲着身体，快要死了。快要咽气时，那人睁开眼睛，说：“他们为什么不找埃文斯？
带着这句话的困惑，博比和他活力十足的伙伴弗兰基着手去解这个谜，这将把他们带入致命的危险之中……
While out playing golf with his friend Dr. Thomas, Bobby Jones finds a man who has apparently fallen over the side of a cliff onto the seaside rocks below. His dying words are "Why didn't they ask Evans?". The dead man is identified by his sister Mrs. Cayman as Alex Pritchard, who had recently returned to the UK from abroad and was on a walking tour. Bobby and his friend Lady Frances Derwent soon conclude that illicit drugs are at the core of the mystery and suspicion falls on a certain Dr. Nicholson who runs a country clinic for drug addicts. The mystery revolves around a will and numerous false or stolen identities. But just who is Evans and what should he/she have been asked?
