Dr. Steven Sorenson plans to tap the geothermal energy of the Earth's interior by means of a thermonuclear device detonated deep within the Earth. This experiment causes a crack to form and grow within the Earth's crust, which threatens to split the earth in two if it is not stopped in time.

Mysterious and unearthly deaths start to occur while Professor Saxton is transporting the frozen remains of a primitive humanoid creature he found in Manchuria back to Europe.

茱莉亚（费·唐纳薇 Faye Dunaway 饰）刚刚结束了一段失败的婚姻，为了排解心中的郁闷，她决定前往威尼斯，和朋友们待在一起。一次偶然中，茱莉亚在电视上看到了一位名叫瓦利瑞恩（马塞洛·马斯楚安尼 Marcello Mastroianni 饰）的工程师接受采访，茱莉亚回想起这正是曾经和自己有过一面之缘的那个男人。
怀着激动之情，茱莉亚主动联络了瓦利瑞恩，和茱莉亚所想的一样，瓦利瑞恩是一位温文尔雅的绅士，随着接触的增加，两人之间燃起了热烈的爱情火花。然而，这段幸福时光并没有持续多久，在感情受到伤害的同时，茱莉亚惊闻自己换上了不治之症，绝望之中，她想到了自我了断。

A gang of young people call themselves the Living Dead. They terrorize the population from their small town. After an agreement with the devil, if they kill themselves firmly believing in it, they will survive and gain eternal life. Following their leader, they commit suicide one after the other, but things don't necessarily turn out as expected...