Kate, a troubled young women wakes up in a parallel dimension and assumes her double's identity in order to solve her attempted murder.

Renowned oneirologist, Ambrose London, is requested to Arkham Asylum to study the strange case of split personality in patient James Fhelleps/Joe Slater.

在位于美国一个建筑复古的神秘实验室里，由多个研究志愿者组成的团队，正在研究人类眨眼与多维世界联通的秘密，白人女博士和她的黑人表兄偶然在这里重逢，当他们无意间通过特殊的头盔联通多为世界后，恐怖的故事由此发生了。

经历病毒浩劫的幸存者们在远离城市的地方建立了新的聚集区，平静的生活却在28年后被再次打破。更加致命的病毒变异，日渐扭曲的人性与欲望，人类的命运将会何去何从？ 　　影片为《惊变28天》续作。

A scientist creates a time machine and kills their younger self to see what would happen. And that self-obsessed, misanthrope, mad genius of a scientist is Tim Travers. And the universe was bad enough with only one of him.