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…

UnemployedCzech-speakingwriterNicholasWhistlerthinkshe'sgotajobvisitingPragueforabitofindustrialespionage.InfactheisnowintheemployofBritishIntelligence.HisprettychauffeuseonarrivalbehindtheIronCurtain,ComradeSimonova,isherselfaCzechagent.Justaswellshe'simmediatelyattractedto007'sunwittingreplacement.