In Los Angeles, a 40-year-old actress works to make it in the cutthroat business of Hollywood while contending with ever-youthful competition.

Seven years after the world has become a frozen wasteland, the remnants of humanity inhabit a perpetually-moving train that circles the globe, where class warfare, social injustice and the politics of survival play out.

In eleven days time, Michael is due to wed his fiancée Helen. However, when he meets Sarah he finds himself unable to resist her.

A group of stage actors lock themselves in the theater for a rehearsal of their upcoming musical production, unaware that an escaped psychopath has sneaked into the theater with them.