Four estranged siblings are reunited – before a brutal murder takes place 15 days later...

It's an invasion of the most personal and terrifying kind. When a meteorite crash lands onto a Boston college campus and an alien beast is released, only one man understands its mission to mate. From the depths of an all girls college, the grotesque monster stalks his prey in a cat-and-mouse chase until the final conflict where only one species can survive.

Twenty year-old student Peter Fraiman falls asleep in 1975 a happy man, having asked his girlfriend to marry him. But when he wakes up, it's 1995; he has a wife he doesn't recognise and two children. Unable to remember anything of the intervening twenty years, he feels he has jumped forward in time. He goes in search of his former girlfriend and is forced to face the fact that he has become a person he never expected to be.

Follows the story of grandfather and his grandson and what their generations had to go through which in the end may not be that different.