After Zane Ziminski is found dead five people received envelopes with details of an alien invasion. This group of five includes 3 scientists, Zane's brother Jack, and a reporter. Quickly, the group is down to three and then Jack and Bridget, the reporter. With a small piece of alien technology, they must escape from the aliens, who take human form, and try to convince others that aliens exist.

Recruited to assist Montreal police in their desperate search for a serial killer who assumes the identities of his victims, FBI profiler Illeana Scott knows it's only a matter of time before the killer strikes again. Her most promising lead is a museum employee who might be the killer's only eyewitness.