Unemployed Czech-speaking writer Nicholas Whistler thinks he's got a job visiting Prague for a bit of industrial espionage. In fact he is now in the employ of British Intelligence. His pretty chauffeuse on arrival behind the Iron Curtain, Comrade Simonova, is herself a Czech agent. Just as well she's immediately attracted to 007's unwitting replacement.

黑帮教父错把一个喜剧演员当成了知名杀手，雇用他去谋杀绰号鳄鱼的大富翁。而这个浑浑噩噩的喜剧演员也误以为此行是去拍电影，便欣然上路。 　　依靠一柄内藏毒针的雨伞，喜剧演员同正牌杀手、富翁党羽、警察三伙人马展开了周旋，还要加上他那难缠的女友！喜剧演员一路误打误撞，过关斩将，最后不但摆脱了性命之忧，还把上了漂亮的警察，还又真正得到了一纸合约并去了戛纳，重要的是，他终于逃出了前女友的魔掌！