简介：Monica Rivers is the owner and ringmaster of a traveling circus, and she'll stop at nothing to draw bigger audiences. When a series of mysterious murders begins to occur and some of her performers die gruesomely, her profits soar. She hires high-wire walker Frank Hawkins, impressed by the handsome and muscular young man. They begin an affair which arouses her previous lover Durando's jealousy. When Durando is found dead shortly afterward, the other performers begin to take alarm, as a mysterious killer is obviously loose in their midst. Many suspect Monica herself of the killings, especially Matilda, who has set her sights on Monica's new lover. At this point, Monica's unruly, sixteen-year-old daughter Angela is expelled from school for being incorrigible, and Monica is forced to take her into the circus, allowing her to become the partner of knife-thrower Gustavo.莫妮卡·里弗斯是一家巡回马戏团的老板兼领班，她会不惜一切代价吸引更多观众。 当一系列神秘谋杀案开始发生并且她的一些表演者惨死时，她的利润飙升。 她聘请了走钢丝的弗兰克霍金斯，对这位英俊肌肉发达的年轻人印象深刻。 他们开始了一段恋情，引起了她以前的情人杜兰多的嫉妒。 当杜兰多不久后被发现死亡时，其他表演者开始惊慌失措，因为一个神秘的杀手显然在他们中间逍遥法外。 许多人怀疑莫妮卡本人是凶手，尤其是玛蒂尔达，她将目光投向了莫妮卡的新情人。 此时，莫妮卡十六岁的女儿安吉拉因不可救药而被学校开除，莫妮卡被迫带她进入马戏团，让她成为掷刀者古斯塔沃的搭档。 与此同时，尸体不断堆积……
